Triazole derivative

ABSTRACT

An object of the present invention is to provide a compound having an action of inhibiting binding between S1P and its receptor, Edg-1 (S1P 1 ), and is useful as a pharmaceutical compound. A compound or a pharmaceutically acceptable salt thereof, which compound is represented by the formula below 
     
       
         
         
             
             
         
       
     
     (where A represents an oxygen atom, a sulfur atom, a group represented by Formula —SO—, a group represented by Formula —SO 2 — or the like, R 1  represents a hydrogen atom, an alkyl group having 1-6 carbon atoms, or the like, R 1A  represents a hydrogen atom or the like, R 2  represents an alkyl group having 1-6 carbon atoms, a cycloalkyl group having 3-6 carbon atoms, or the like, represents an aryl group, R 4  represents a hydrogen atom or an alkyl group having 1-6 carbon atoms and optionally substituted with a carboxyl group, and R 5  represents an alkyl group having 1-carbon atoms, a cycloalkyl group having 3-8 carbon atoms, an aryl group which is optionally substituted, or the like).

TECHNICAL FIELD

The present invention relates to novel triazole derivatives which have an inhibitory effect on the binding between sphingosine-1-phosphate having various physiological actions and its receptor Edg-1 (Endothelial differentiation gene receptor type-1, S1P1). The present invention also relates to pharmaceutical preparations comprising these compounds as active ingredients, and synthetic intermediates for these compounds.

BACKGROUND ART

Sphingosine-1-phosphate (hereinafter referred to as “S1P”) is a physiologically active lipid which is generated when sphingolipids (typified by sphingomyelin) are metabolized in cells. S1P is known to have a wide variety of actions such as cell differentiation induction, cell growth stimulation, cell motility inhibition and apoptosis inhibition, and is also known to show physiological actions such as angiogenesis, bradycardia induction, inflammatory cell activation and platelet activation (Non-patent Document 1).

As SIP receptors, the following 5 subtypes have been reported: Edg-1(S1P1), Edg-3(S1P3), Edg-5(S1P2), Edg-6(S1P4) and Edg-8(S1P5) (Non-patent Document 2).

Among these subtypes, Edg-1(S1P1) is highly expressed in immunocytes (e.g., T cells, dendritic cells) and vascular endothelial cells, suggesting that Edg-1(S1P1) contributes deeply to S1P-stimulated T cell migration (Non-patent Document 3), mast cell migration (Non-patent Document 4), T and B cell egress from lymphoid organs (Non-patent Document 5) and angiogenesis (Non-patent Document 6), and is involved in autoimmune diseases such as Crohn's disease, irritable colitis, Sjogren's syndrome, multiple sclerosis and systemic lupus erythematosus, as well as other diseases such as rheumatoid arthritis, asthma, atopic dermatitis, rejection after organ transplantation, cancer, retinopathy, psoriasis, osteoarthritis, age-related macular degeneration, etc.

Thus, ligands for Edg-1(S1P1) would be effective for treatment or prevention of these diseases.

Edg-1(S1P1) ligands previously known include certain types of thiophene derivatives (Non-patent Document 7), phosphoric acid derivatives (Patent Documents 1 and 2, Non-patent Documents 8 and 9) and thiazolidine derivatives (Patent Document 3), carboxylic acid derivatives (Patent Documents 4, 5, 6 and 8, Non-patent Documents 10 and 11), amino group-containing derivatives (Patent Document 7), and pyrrole derivatives (Patent Document 9).

Patent Document 1: WO2002-18395

Patent Document 2: JP 2003-137894 A

Patent Document 3: JP 2002-332278 A

Patent Document 4: WO2002-092068

Patent Document 5: WO2003-105771

Patent Document 6: WO2004-058149

Patent Document 7: WO2004-103279

Patent Document 8: WO2005-1058848

Patent Document 9: WO2005-123677

Non-patent Document 1: J Biol. Chem. 2004, 279: 20555, FASEB J 2002, 16: 625, Proceedings of the Japanese Society for Immunology 2003, 33: 2-J-W30-20-P

Non-patent Document 2: Pharmacol Res 2003, 47: 401

Non-patent Document 3: FASEB J 2002, 16:1874

Non-patent Document 4: J Exp Med 2004, 199: 959

Non-patent Document 5: Nature 2004, 427: 355

Non-patent Document 6: J Clin Invest 2000, 106: 951,

Biocchim Biophys Acta 2002, 1582: 222

Non-patent Document 7: J Biol Chem 2004, 279: 13839

Non-patent Document 8: Bioorg Med Chem Lett 2003, 13: 3401

Non-patent Document 9: J Med. Chem. 2004, 47: 6662

Non-patent Document 10: J Med. Chem. 2005, 48: 6169

Non-patent Document 11: J Biol. Chem. 2005; 280: 9833

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention

The present invention has as an object to provide a compound with a new skeletal structure, which compound has an action of inhibiting binding between SiP and its receptor Edg-1 (S1P₁) and is useful as a pharmaceutical product.

Means for Solving the Problems

The inventors of the present invention have diligently studied in an attempt to find ligand compounds for Edg-1 (SlPl). As a result, they find that the object is attained with a triazole derivative of Formula (I) below or a pharmaceutically acceptable salt thereof (a feature is that R³ in the formula is an optionally substituted aryl group). This finding has led to the accomplishment of the present invention. The triazole derivative of Formula (I) below with this feature is a completely new compound. Although compounds having an alkyl group corresponding to R³ of Formula (I) are commercially available from Bionet as reagents, they differ in structure from that of the compound of the subject application, and pharmaceutical use of the compounds of Bionet has not been known at all.

The following are embodiments of the triazole derivatives of Formula (I) and compounds of Formula (II), which are intermediates of the triazole derivatives (hereinafter, all of them will be referred to as “compounds of the present invention”).

1. A compound represented by Formula (I)

or a pharmaceutically acceptable salt thereof, wherein A represents:

an oxygen atom,

a sulfur atom,

a group represented by Formula —SO—,

a group represented by Formula —SO₂—,

a group represented by Formula —CH₂—, or

a group represented by Formula —NR⁶—, wherein R⁶ represents a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms;

R¹ represents;

a hydrogen atom,

an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a substituent(s) selected from the group consisting of:

-   -   a hydroxyl group,     -   a halogen atom,     -   an alkoxy group having from 1 to 6 carbon atoms, said alkoxy         group optionally substituted with a phenyl group, and     -   a phenyl group, optionally substituted with a substituent(s)         selected from the group consisting of a halogen atom and an         alkyl group having from 1 to 6 carbon atoms,

a cycloalkyl group having from 3 to 8 carbon atoms,

an alkenyl group having from 2 to 8 carbon atoms,

an alkynyl group having from 2 to 8 carbon atoms, or

a phenyl group;

R^(1A) represents:

a hydrogen atom or

an alkyl group having from 1 to 6 carbon atoms;

R¹ and R^(1A) optionally form, together with a carbon atom to which said R¹ and R^(1A) are attached, a cycloalkyl group having from 3 to 6 carbon atoms; R² represents:

a hydrogen atom,

an alkyl group having from 1 to 6 carbon atoms,

an alkenyl group having from 2 to 8 carbon atoms,

an alkynyl group having from 2 to 8 carbon atoms, or

a cycloalkyl group having from 3 to 6 carbon atoms;

R³ represents an optionally substituted aryl group; R⁴ represents:

a hydrogen atom or

an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a carboxyl group;

R⁵ represents:

(i) an alkyl group having from 1 to 10 carbon atoms,

(ii) an alkyl group having from 1 to 10 carbon atoms and substituted with 1 to 2 substituents selected from the group consisting of:

-   -   a cycloalkyl group having from 3 to 8 carbon atoms,     -   a pyridyl group, and     -   a phenyl group, a phenoxy group, and a naphthyl group, each         optionally substituted with 1 to 2 substituents selected from         the group consisting of a halogen atom and an alkoxy group         having from 1 to 6 carbon atoms,

(iii) a cycloalkyl group having from 3 to 8 carbon atoms,

(iv) an alkenyl group having from 2 to 8 carbon atoms,

(v) an alkenyl group having from 2 to 8 carbon atoms and substituted with a phenyl group,

(vi) an alkynyl group having from 2 to 8 carbon atoms,

(vii) an alkynyl group having from 2 to 8 carbon atoms and substituted with a phenyl group, or

(viii) an optionally substituted aryl group.

2. The compound of Embodiment 1, or a pharmaceutically acceptable salt thereof, wherein, in Formula (I): R¹ represents:

a hydrogen atom,

an alkyl group having from 1 to 6 carbon atoms,

an alkyl group having from 1 to 6 carbon atoms and substituted with a phenyl group,

a cycloalkyl group having from 3 to 8 carbon atoms,

an alkenyl group having from 2 to 8 carbon atoms,

an alkynyl group having from 2 to 8 carbon atoms, or

a phenyl group;

R^(1A) represents a hydrogen atom; R² represents:

an alkyl group having from 1 to 6 carbon atoms,

an alkenyl group having from 2 to 8 carbon atoms,

an alkynyl group having from 2 to 8 carbon atoms, or

a cycloalkyl group having from 3 to 6 carbon atoms;

R⁴ represents:

a hydrogen atom, or

an alkyl group having from 1 to 6 carbon atoms;

R⁵ represents:

(i) an alkyl group having from 1 to 10 carbon atoms,

(ii) an alkyl group having from 1 to 10 carbon atoms and substituted with 1 to 2 substituents selected from the group consisting of:

-   -   a cycloalkyl group having from 3 to 8 carbon atoms,     -   a phenyl group,     -   a naphthyl group,     -   a pyridyl group, and

a phenyl group substituted with 1 to 2 substituents selected from the group consisting of a halogen atom and an alkoxy group having from 1 to 6 carbon atoms,

(iii) a cycloalkyl group having from 3 to 8 carbon atoms,

(iv) an alkenyl group having from 2 to 8 carbon atoms,

(v) an alkenyl group having from 2 to 8 carbon atoms and substituted with a phenyl group,

(vi) an alkynyl group having from 2 to 8 carbon atoms,

(vii) an alkynyl group having from 2 to 8 carbon atoms and substituted with a phenyl group, or

(viii) an optionally substituted aryl group.

3. The compound of Embodiment 1 or 2, or a pharmaceutically acceptable salt thereof, wherein A is an oxygen atom or a group represented by Formula —NR⁶—. 4. The compound of Embodiment 1 or 2, or a pharmaceutically acceptable salt thereof, wherein A is an oxygen atom. 5. The compound of Embodiment 1 or 2, or a pharmaceutically acceptable salt thereof, wherein A is a group represented by Formula —NH—. 6. The compound of any one of Embodiments 1 and 3-5, or a pharmaceutically acceptable salt thereof, wherein: R¹ represents an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a substituent(s) selected from the group consisting of:

a hydroxyl group,

a halogen atom,

an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a phenyl group; and

a phenyl group, optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms;

R^(1A) represents:

a hydrogen atom; or

an alkyl group having from 1 to 6 carbon atoms; and

R¹ and R^(1A) optionally form, together with a carbon atom to which said R¹ and R^(1A) are attached, a cycloalkyl group having from 3 to 6 carbon atoms. 7. The compound of any one of Embodiments 1 and 3-5, or a pharmaceutically acceptable salt thereof, wherein:

R¹ is:

an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a halogen atom(s), or

a benzyl group optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms: and

R^(1A) is a hydrogen atom. 8. The compound of any one of Embodiments 1-5, or a pharmaceutically acceptable salt thereof, wherein R¹ is a methyl group or an ethyl group, and R^(1A) is a hydrogen atom. 9. The compound of any one of Embodiments 1-8, or a pharmaceutically acceptable salt thereof, wherein R⁴ is a hydrogen atom. 10. The compound of any one of Embodiments 1-9, or a pharmaceutically acceptable salt thereof, wherein R² is an alkyl group having from 1 to 6 carbon atoms, or a cycloalkyl group having from 3 to 6 carbon atoms. 11. The compound of any one of Embodiments 1-9, or a pharmaceutically acceptable salt thereof, wherein R² is an ethyl group or a cyclopropyl group. 12. The compound of any one of Embodiments 1 and 3-11, or a pharmaceutically acceptable salt thereof, wherein R⁵ is:

(i) an alkyl group having from 1 to 10 carbon atoms,

(ii) an alkyl group having from 1 to 10 carbon atoms and substituted with 1 to 2 substituents selected from the group consisting of:

-   -   a cycloalkyl group having from 3 to 8 carbon atoms,     -   a pyridyl group, and     -   a phenyl group, a phenoxy group, and a naphthyl group, each         optionally substituted with 1 to 2 substituents selected from         the group consisting of a halogen atom and an alkoxy group         having from 1 to 6 carbon atoms;

(iii) an alkenyl group having from 2 to 8 carbon atoms and optionally substituted with a phenyl group, or

(iv) a phenyl group, a naphthyl group, a thienyl group, a pyrrolyl group, a pyrazolyl group, a pyridyl group, a furanyl group, a benzothienyl group, an isoquinolinyl, an isoxazolyl group, a thiazolyl group, a benzothiadiazolyl group, a benzoxadiazolyl group, a dihydrobenzodioxepinyl group, a dihydrobenzodioxynyl group, a benzodioxolyl group, a dihydrobenzofuranyl group, an indanyl group, an uracil group, a coumaryl group, a chromanyl group, a dihydroindolyl group, a tetrahydronaphthyl group, or a tetrahydroisoquinolinyl group, each optionally substituted with 1 to 5 substituents selected from the group consisting of:

-   -   an alkyl group having from 1 to 6 carbon atoms and optionally         substituted with a fluorine atom(s),     -   an alkenyl group having from 2 to 8 carbon atoms,     -   a halogen atom,     -   an alkoxy group having from 1 to 6 carbon atoms and optionally         substituted with a fluorine atom(s),     -   a pyrazolyl group, an oxazolyl group, an isoxazolyl group, a         thiadiazolyl group, and a pyrimidinyl group, each optionally         substituted with a substituent(s) selected from Group X         consisting of a methyl group, a trifluoromethyl group, a halogen         atom, and a methylsulfanyl group,     -   an alkylthio group having from 1 to 6 carbon atoms,     -   an alkylsulfonyl group having from 1 to 6 carbon atoms,     -   a benzenesulfonyl group,     -   a morpholinosulfonyl group,     -   a morpholinocarbonylamino group,     -   an aminosulfonyl group,     -   an alkoxycarbonyl group having from 2 to 10 carbon atoms,     -   a morpholino group optionally substituted with an alkyl group(s)         having from 1 to 6 carbon atoms     -   a phenyl group optionally substituted with an alkoxy group(s)         having from 1 to 6 carbon atoms,     -   a phenoxy group,     -   a pyridinecarbonyl group,     -   a pyridineoxy group,     -   a cyano group,     -   an alkanoyl group having from 2 to 7 carbon atoms and optionally         substituted with a fluorine atom(s), and     -   an alkanoylamino group having from 2 to 7 carbon atoms.         13. The compound of any one of Embodiments 1-11, or a         pharmaceutically acceptable salt thereof, wherein R⁵ is:

an alkyl group having from 1 to 10 carbon atoms and substituted with a cycloalkyl group having from 3 to 8 carbon atoms,

an alkyl group having from 1 to 10 carbon atoms and substituted with a naphthyl group,

an alkenyl group having from 2 to 8 carbon atoms and substituted with a phenyl group,

a phenyl group or a naphthyl group, each optionally substituted with 1 to 5 substituents selected from the group consisting of:

-   -   an alkyl group having from 1 to 6 carbon atoms;     -   a halogen atom,     -   an alkoxy group having from 1 to 6 carbon atoms;     -   a trifluoromethoxy group,     -   a difluoromethoxy group,     -   a trifluoromethyl group,     -   an alkenyl group having from 1 to 6 carbon atoms,     -   an alkylsulfonyl group having from 1 to 6 carbon atoms,     -   an alkanoyl group having from 2 to 7 carbon atoms,     -   an alkoxycarbonyl group having from 2 to 7 carbon atoms, and     -   a cyano group,

a pyrrolyl group optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms and a methoxycarbonyl group;

a furanyl group optionally selected from a substituent(s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms, a trifluoromethyl group, and a halogen atom;

a thienyl group optionally substituted with a substituent (s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms, a trifluoromethyl group, a thiadiazolyl group, an oxazolyl group, and a halogen atom; or

a benzothienyl group, a dihydrobenzodioxepinyl group, a benzodioxolyl group, a dihydrobenzodioxynyl group, a dihydrobenzofuranyl group, a tetrahydronaphthyl group, an indanyl group, a thiadiazolyl group, a benzoxadiazolyl group, or a benzothiadiazolyl group, each optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms and a halogen atom.

14. The compound of any one of Embodiments 1-11, or a pharmaceutically acceptable salt thereof, wherein R⁵ is:

an alkyl group having from 1 to 6 carbon atoms and substituted with a naphthyl group,

an alkenyl group having from 2 to 6 carbon atoms and substituted with a phenyl group;

an unsubstituted phenyl group,

a phenyl group substituted with 1 to 5 substituents selected from the group consisting of a methyl group, a methoxy group, and a halogen atom,

a phenyl group substituted with 1 to 3 substituents selected from the group consisting of:

-   -   an alkyl group having from 1 to 6 carbon atoms,     -   a halogen atom,     -   a methoxy group,     -   a trifluoromethoxy group,     -   a difluoromethoxy group,     -   a trifluoromethyl group,     -   an alkenyl group having from 1 to 6 carbon atoms,     -   a methylsulfonyl group,     -   an acetyl group,     -   a methoxycarbonyl group, and     -   a cyano group,     -   said phenyl group substituted at either 3 or 4 position or both;

a naphthyl group optionally substituted with a substituent(s) selected from the group consisting of:

-   -   a halogen atom,     -   an alkyl group having from 1 to 6 carbon atoms,     -   a cyano group, and     -   an alkylsulfonyl group having from 1 to 6 carbon atoms, or

a benzothienyl group, a benzoxadiazolyl group, a benzodioxolyl group, a dihydrobenzodioxynyl group, a dihydrobenzofuranyl group, an indanyl group, or a benzothiadiazolyl group, each optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms and a halogen atom.

15. The compound of any one of Embodiments 1-11, or a pharmaceutically acceptable salt thereof, wherein R⁵ is:

a phenyl group substituted at 3 and 4 positions each with a halogen atom, or

a naphthyl group optionally substituted with a substituent(s) selected from the group consisting of a halogen atom, an alkyl group having from 1 to 6 carbon atoms, and a cyano group.

16. The compound of any one of Embodiments 1-15, or a pharmaceutically acceptable salt thereof, wherein R³ is a phenyl group, a naphthyl group, a pyrazolyl group, a pyridyl group, an indolyl group, a benzothiazolyl group, a benzothiadiazolyl group, a pyrazolopyrimidinyl group, a quinolinyl group, an isoquinolinyl group, a benzothienyl group, or a dihydroquinolinonyl group, each optionally substituted with 1 to 3 substituents selected from the group consisting of the following substituents:

an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a fluorine atom(s),

a cycloalkyl group having from 3 to 8 carbon atoms,

a halogen atom,

an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a substituent(s) selected from the group consisting of a fluorine atom, a phenyl group, an amino group substituted with two alkyl groups each having from 1 to 4 carbon atoms, and a morpholino group;

a phenoxy group,

a phenyl group,

a carboxyl group,

an alkoxycarbonyl group having from 2 to 10 carbon atoms,

a hydroxyl group,

a monocylic saturated hydrocarbon group having from 2 to 7 carbon atoms and having a nitrogen atom(s) as a ring atom(s), said saturated hydrocarbon group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms,

a nitrogen-containing monocylic unsaturated hydrocarbon group,

a morpholinyl group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms,

a piperazino group optionally substituted with a substituent(s) selected from the group consisting of:

-   -   an alkyl group having from 1 to 6 carbon atoms, said alkyl group         optionally substituted with an amino group optionally         substituted with one or two alkyl groups each having from 1 to 6         carbon atoms, a morpholino group, a hydroxyl group, or an alkoxy         group having from 1 to 6 carbon atoms,     -   a formyl group,     -   an alkanoyl group having from 2 to 7 carbon atoms,     -   a carbamoyl group optionally substituted with one or two alkyl         groups each having from 1 to 4 carbon atoms,     -   an aminosulfonyl group optionally substituted with one or two         alkyl groups each having from 1 to 6 carbon atoms, and     -   an alkylsulfonyl group having from 1 to 6 carbon atoms, and

Formula —NR R^(X), wherein:

-   -   R⁷ and R⁸ each represent:     -   a hydrogen atom,     -   an alkyl group having from 1 to 6 carbon atoms, said alkyl group         optionally substituted with an amino group optionally         substituted with one or two alkyl groups each having from 1 to 6         carbon atoms, a hydroxyl group, or an alkoxy group having from 1         to 6 carbon atoms,     -   an alkanoyl group having from 1 to 6 carbon atoms,     -   a carbamoyl group optionally substituted with one or two alkyl         groups each having from 1 to 4 carbon atoms,     -   a morpholinocarbonyl group,     -   an aminosulfonyl group optionally substituted with one or two         alkyl groups each having from 1 to 6 carbon atoms, or     -   an alkylsulfonyl group having from 1 to 6 carbon atoms, or     -   R⁷ and R⁸ optionally form, together with the nitrogen atom to         which said R⁷ and R⁸ are attached, a 3- to 8-membered saturated         hydrocarbon ring, said ring optionally substituted with a         substituent(s) selected from the group consisting of a         dimethylenedioxy group, an oxo group, and a hydroxyl group.         17. The compound of any one of Embodiments 1-15, or a         pharmaceutically acceptable salt thereof, wherein R³ is:

a 2-naphthyl group, optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms,

a 3-pyrazolyl group, optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms, a trifluoromethyl group, and a halogen atom, or

a 5-benzothiazolyl group, a 5-benzothiadiazolyl group, a 7-dihydroquinolinonyl group, a 7-isoquinolinyl group, a 7-quinolinyl group, a 3-pyridyl group, or an indolyl group, each optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms,

an unsubstituted phenyl group, or

a substituted phenyl group (A), (B), or (C) below:

(A) a phenyl group substituted at 4 position with a substituent selected from the group consisting of:

-   -   an alkyl group having from 1 to 6 carbon atoms,     -   a cycloalkyl group having from 3 to 8 carbon atoms,     -   an alkoxy group having from 1 to 6 carbon atoms, said alkoxy         group optionally substituted with a substituent(s) selected from         the group consisting of an amino group substituted with two         alkyl groups each having from 1 to 4 carbon atoms, a morpholino         group, and a phenyl     -   group,     -   a halogen atom,     -   a trifluoromethoxy group,     -   a phenoxy group,     -   a phenyl group,     -   a 1-pyrrolyl group, and     -   —NR^(A)R^(B), wherein each of R^(A) and R^(B) is an alkyl group         having from 1 to 6 carbon atoms, or R^(A) and R^(B) optionally         form, together with the nitrogen atom to which said R^(A) and         R^(B) are attached, a 3- to 5-membered saturated hydrocarbon         ring,

wherein said phenyl group substituted at 4 position is further optionally substituted at 3 position with a substituent selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms, a halogen atom, and an alkoxy group having from 1 to 6 carbon atoms;

(B) a phenyl group substituted at 3 position with a substituent selected from the group consisting of:

-   -   a hydroxyl group,     -   an alkyl group having from 1 to 6 carbon atoms, and     -   an alkoxy group having from 1 to 6 carbon atoms, said alkoxy         group optionally substituted with a substituent(s) selected from         the group consisting of an amino group substituted with two         alkyl groups each having from 1 to 4 carbon atoms, a morpholino         group, and a phenyl group,

wherein said phenyl group substituted at 3 position is further optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, or is further optionally substituted at 4 position with a halogen atom; and

(C) a phenyl group substituted at 3 position with a substituent selected from the group consisting of nitrogen-containing groups (i)-(v) below, said phenyl group further optionally substituted at 4 position with a halogen atom:

-   -   (i) a monocylic saturated hydrocarbon group having from 2 to 7         carbon atoms and having a nitrogen atom(s) as a ring atom(s),         said saturated hydrocarbon group optionally substituted with an         alkyl group(s) having from 1 to 6 carbon atoms,     -   (ii) a nitrogen-containing monocylic unsaturated hydrocarbon         group,     -   (iii) a morpholinyl group optionally substituted with an alkyl         group(s) having from 1 to 6 carbon atoms,     -   (iv) a piperazino group, optionally substituted with an alkanoyl         group having from 2 to 7 carbon atoms or an alkyl group having         from 1 to 6 carbon atoms and optionally substituted with a         substituent(s) selected from the group consisting of:         -   an amino group substituted with two alkyl groups each having             from 1 to 4 carbon atoms, and         -   a morpholino group, and     -   (v) Formula —NR⁷R⁸, wherein:         -   R⁷ and R⁸ each represent:         -   a hydrogen atom,         -   an alkyl group having from 1 to 6 carbon atoms, said alkyl             group optionally substituted with an amino group optionally             substituted with one or two alkyl groups each having from 1             to 6 carbon atoms, a morpholino group, a hydroxyl group, or             an alkoxy group having from 1 to 6 carbon atoms,         -   an alkanoyl group having from 1 to 6 carbon atoms,         -   a carbamoyl group optionally substituted with one or two             alkyl groups each having from 1 to 4 carbon atoms,         -   a morpholinocarbonyl group,         -   an aminosulfonyl group optionally substituted with one or             two alkyl groups each having from 1 to 6 carbon atoms, or         -   an alkylsulfonyl group having from 1 to 6 carbon atoms, or

R⁷ and R⁸ optionally form, together with the nitrogen atom to which said R⁷ and R⁸ are attached, a 3- to 8-membered saturated hydrocarbon ring, said ring optionally substituted with a substituent(s) selected from the group consisting of a dimethylenedioxy group, an oxo group, and a hydroxyl group.

18. The compound of any one of Embodiments 1-15, or a pharmaceutically acceptable salt thereof, wherein R³ is a phenyl group substituted at 3 position with a substituent selected from the group consisting of nitrogen-containing groups (i)-(v) below, said phenyl group further optionally substituted at 4 position with a halogen atom:

(i) a monocylic saturated hydrocarbon group having from 2 to 7 carbon atoms and having a nitrogen atom(s) as a ring atom(s), said saturated hydrocarbon group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms,

(ii) a nitrogen-containing monocylic unsaturated hydrocarbon group,

(iii) a morpholinyl group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms,

(iv) a piperazino group, optionally substituted with an alkanoyl group having from 2 to 7 carbon atoms or an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a substituent(s) selected from the group consisting of:

-   -   an amino group substituted with two alkyl groups each having         from 1 to 4 carbon atoms, and     -   a morpholino group, and

(v) Formula —NR⁷R⁸, wherein:

-   -   R⁷ and R⁸ each represent:     -   a hydrogen atom,     -   an alkyl group having from 1 to 6 carbon atoms, said alkyl group         optionally substituted with an amino group optionally         substituted with one or two alkyl groups each having from 1 to 6         carbon atoms, a morpholino group, a hydroxyl group, or an alkoxy         group having from 1 to 6 carbon atoms,     -   an alkanoyl group having from 1 to 6 carbon atoms,     -   a carbamoyl group optionally substituted with one or two alkyl         groups each having from 1 to 4 carbon atoms,     -   a morpholinocarbonyl group,     -   an aminosulfonyl group optionally substituted with one or two         alkyl groups each having from 1 to 6 carbon atoms, or     -   an alkylsulfonyl group having from 1 to 6 carbon atoms, or

R⁷ and R⁸ optionally form, together with the nitrogen atom to which said R⁷ and R⁸ are attached, a 3- to 8-membered saturated hydrocarbon ring, said ring optionally substituted with a substituent(s) selected from the group consisting of a dimethylenedioxy group, an oxo group, and a hydroxyl group.

19. The compound of any one of Embodiments 1-15, or a pharmaceutically acceptable salt thereof, wherein R³ is a phenyl group substituted at 4 position with a fluorine atom or a chlorine atom. 20. The compound of any one of Embodiments 1-15, or a pharmaceutically acceptable salt thereof, wherein R³ is a 6-indolyl group. 21. A pharmaceutical preparation, comprising the compound of any one of Embodiments 1-20 or a pharmaceutically acceptable salt thereof. 22. The pharmaceutical preparation of Embodiment 21, which is for treatment of an autoimmune disease, such as Crohn disease, hypersensitivity colitis, Sjogren's syndrome, multiple sclerosis, and systemic lupus erythematosus, rheumatoid arthritis, asthma, atopic dermatitis, organ transplant rejection, cancer, retinopathy, psoriasis, osteoarthritis, or age-related macular degeneration. 23. A compound represented by Formula (II)

or a salt thereof, wherein R¹, R^(1A), R², and R³ are as defined in Embodiment 1, and A′ represents an oxygen atom or NH. 24. The compound of Embodiment 23, or a salt thereof, wherein, in Formula (II): A′ represents an oxygen atom; R¹ represents:

a hydrogen atom,

an alkyl group having from 1 to 6 carbon atoms, an alkyl group having from 1 to 6 carbon atoms and substituted with a phenyl group,

a cycloalkyl group having from 3 to 8 carbon atoms,

an alkenyl group having from 2 to 8 carbon atoms,

an alkynyl, group having from 2 to 8 carbon atoms, or

a phenyl group;

R^(1A) represents a hydrogen atom; and R² represents;

an alkyl group having from 1 to 6 carbon atoms,

an alkenyl group having from 2 to 8 carbon atoms,

an alkynyl group having from 2 to 8 carbon atoms, or

a cycloalkyl group having from 3 to 6 carbon atoms.

25. The compound of Embodiment 23, or a salt thereof, wherein, in Formula (II): A′ represents NH; R¹ represents:

a hydrogen atom,

an alkyl group having from 1 to 6 carbon atoms,

an alkyl group having from 1 to 6 carbon atoms and substituted with a phenyl group,

a cycloalkyl group having from 3 to 8 carbon atoms,

an alkenyl group having from 2 to 8 carbon atoms,

an alkynyl group having from 2 to 8 carbon atoms, or

a phenyl group;

R^(1A) represents a hydrogen atom; and R² represents:

an alkyl group having from 1 to 6 carbon atoms,

an alkenyl group having from 2 to 8 carbon atoms,

an alkynyl group having from 2 to 8 carbon atoms, or

a cycloalkyl group having from 3 to 6 carbon atoms.

26. The compound of Embodiment 23, or a salt thereof, wherein: R¹ represents an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a substituent(s) selected from the group consisting of:

a hydroxyl group,

a halogen atom,

an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a phenyl group, and

a phenyl group, optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms;

R^(1A) represents a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms; and R¹ and R^(1A) optionally form, together with a carbon atom to which said R¹ and R^(1A) are attached, a cycloalkyl group having from 3 to 6 carbon atoms. 27. The compound of Embodiment 23, or a salt thereof, wherein: R¹ is an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a halogen atom(s), or a benzyl group optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms; and R^(1A) is a hydrogen atom. 28. The compound of any one of Embodiments 23-25, or a salt thereof, wherein R¹ is a methyl group or an ethyl group, and R^(1A) is a hydrogen atom. 29. The compound of any one of Embodiments 23-28, or a salt thereof, wherein R² is an alkyl group having from 1 to 6 carbon atoms, or a cycloalkyl group having from 3 to 8 carbon atoms. 30. The compound of any one of Embodiments 23-28, or a salt thereof, wherein R² is an ethyl group or a cyclopropyl group. 31. The compound of any one of Embodiments 23-30, or a salt thereof, wherein;

R³ is a phenyl group, a naphthyl group, a pyrazolyl group, a pyridyl group, an indolyl group, a benzothiazolyl group, a benzothiadiazolyl group, a pyrazolopyrimidinyl group, a quinolinyl group, an isoquinolinyl group, a benzothienyl group, or a dihydroquinolinonyl group, each optionally substituted with 1 to 3 substituents selected from the group consisting of the following substituents:

an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a fluorine atom(s),

a cycloalkyl group having from 3 to 8 carbon atoms,

a halogen atom,

an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a substituent(s) selected from the group consisting of a fluorine atom, a phenyl group, an amino group substituted with two alkyl groups each having from 1 to 4 carbon atoms, and a morpholino group,

a phenoxy group,

a phenyl group,

a carboxyl group,

an alkoxycarbonyl group having from 2 to 10 carbon atoms,

a hydroxyl, group,

a monocylic saturated hydrocarbon group having from 2 to 7 carbon atoms and having a nitrogen atom(s) as a ring atom(s), said saturated hydrocarbon group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms;

a nitrogen-containing monocylic unsaturated hydrocarbon group,

a morpholinyl group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms,

a piperazino group optionally substituted with a substituent(s) selected from the group consisting of:

-   -   an alkyl group having from 1 to 6 carbon atoms, said alkyl group         optionally substituted with an amino group optionally         substituted with one or two alkyl groups each having from 1 to 6         carbon atoms, a morpholino group, a hydroxyl group, or an alkoxy         group having from 1 to 6 carbon atoms,     -   a formyl group,     -   an alkanoyl group having from 2 to 7 carbon atoms,     -   a carbamoyl group optionally substituted with one or two alkyl         groups each having from 1 to 4 carbon atoms,     -   an aminosulfonyl group optionally substituted with one or two         alkyl groups each having from 1 to 6 carbon atoms, and     -   an alkylsulfonyl group having from 1 to 6 carbon atoms; and

Formula —NR⁷R⁸, wherein:

-   -   R⁷ and R⁸ each represent:     -   a hydrogen atom,     -   an alkyl group having from 1 to 6 carbon atoms, said alkyl group         optionally substituted with an amino group optionally         substituted with one or two alkyl groups each having from 1 to 6         carbon atoms, a hydroxyl group, or an alkoxy group having from 1         to 6 carbon atoms,     -   an alkanoyl group having from 1 to 6 carbon atoms,     -   a carbamoyl group optionally substituted with one or two alkyl         groups each having from 1 to 4 carbon atoms,     -   a morpholinocarbonyl group,     -   an aminosulfonyl group optionally substituted with one or two         alkyl groups each having from 1 to 6 carbon atoms, or     -   an alkylsulfonyl group having from 1 to 6 carbon atoms, or

R⁷ and R⁸ optionally form, together with the nitrogen atom to which said R⁷ and R⁸ are attached, a 3- to 8-membered saturated hydrocarbon ring, said ring optionally substituted with a substituent(s) selected from the group consisting of a dimethylenedioxy group, an oxo group, and a hydroxyl group.

32. The compound of any one of Embodiments 23-30, or a salt thereof, wherein R³ is:

a 2-naphthyl group, optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms;

a 3-pyrazolyl group, optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms, a trifluoromethyl group, and a halogen atom;

a 5-benzothiazolyl group, a 5-benzothiadiazolyl group, a 7-dihydroquinolinonyl group, a 7-isoquinolinyl group, a 7-quinolinyl group, a 3-pyridyl group, or an indolyl group, each optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms;

an unsubstituted phenyl group; or

a substituted phenyl group (A), (B), or (C) below:

-   -   (A) a phenyl group substituted at 4 position with a substituent         selected from the group consisting of:         -   an alkyl group having from 1 to 6 carbon atoms,         -   a cycloalkyl group having from 3 to 8 carbon atoms,         -   an alkoxy group having from 1 to 6 carbon atoms, said alkoxy             group optionally substituted with a substituent(s) selected             from the group consisting of an amino group substituted with             two alkyl groups each having from 1 to 4 carbon atoms, a             morpholino group, and a phenyl group,         -   a halogen atom,         -   a trifluoromethoxy group,         -   a phenoxy group,         -   a phenyl group,         -   a 1-pyrrolyl group, and         -   —NR^(A)R^(B), wherein each of R^(A) and R^(B) is an alkyl             group having from 1 to 6 carbon atoms, or R^(A) and R^(B)             optionally form, together with the nitrogen atom to which             said R^(A) and R^(B) are attached, a 3- to 5-membered             saturated hydrocarbon ring,     -   wherein said phenyl group substituted at 4 position is further         optionally substituted at 3 position with a substituent selected         from the group consisting of an alkyl group having from 1 to 6         carbon atoms, a halogen atom, and an alkoxy group having from 1         to 6 carbon atoms;     -   (B) a phenyl group substituted at 3 position with a substituent         selected from the group consisting of:         -   a hydroxyl group,         -   an alkyl group having from 1 to 6 carbon atoms, and         -   an alkoxy group having from 1 to 6 carbon atoms, said alkoxy             group optionally substituted with a substituent(s) selected             from the group consisting of an amino group substituted with             two alkyl groups each having from 1 to 4 carbon atoms, a             morpholino group, and a phenyl group,     -   wherein said phenyl group substituted at 3 position is further         optionally substituted with one or two alkyl groups each having         from 1 to 6 carbon atoms, or is further optionally substituted         at 4 position with a halogen atom; and     -   (C) a phenyl group substituted at 3 position with a substituent         selected from the group consisting of nitrogen-containing groups         (i)-(v) below, said phenyl group further optionally substituted         at 4 position with a halogen atom:         -   (i) a monocylic saturated hydrocarbon group having from 2 to             7 carbon atoms and having a nitrogen atom(s) as a ring             atom(s), said saturated hydrocarbon group optionally             substituted with an alkyl group(s) having from 1 to 6 carbon             atoms,         -   (ii) a nitrogen-containing monocylic unsaturated hydrocarbon             group,         -   (iii) a morpholinyl group optionally substituted with an             alkyl group(s) having from 1 to 6 carbon atoms,         -   (iv) a piperazino group, optionally substituted with an             alkanoyl group having from 2 to 7 carbon atoms or an alkyl             group having from 1 to 6 carbon atoms and optionally             substituted with a substituent(s) selected from the group             consisting of:             -   an amino group substituted with two alkyl groups each                 having from 1 to 4 carbon atoms; and             -   a morpholino group, and         -   (v) Formula —NR⁷R⁸, wherein;             -   R⁷ and R⁸ each represent:                 -   a hydrogen atom,                 -   an alkyl group having from 1 to 6 carbon atoms, said                     alkyl group optionally substituted with an amino                     group optionally substituted with one or two alkyl                     groups each having from 1 to 6 carbon atoms, a                     morpholino group, a hydroxyl group, or an alkoxy                     group having from 1 to 6 carbon atoms;                 -   an alkanoyl group having from 1 to 6 carbon atoms,                 -   a carbamoyl group optionally substituted with one or                     two alkyl groups each having from 1 to 4 carbon                     atoms,                 -   a morpholinocarbonyl group,                 -   an aminosulfonyl group optionally substituted with                     one or two alkyl groups each having from 1 to 6                     carbon atoms, or                 -   an alkylsulfonyl group having from 1 to 6 carbon                     atoms, or             -   R⁷ and R⁸ optionally form, together with the nitrogen                 atom to which said R⁷ and R⁸ are attached, a 3- to                 8-membered saturated hydrocarbon ring, said ring                 optionally substituted with a substituent(s) selected                 from the group consisting of a dimethylenedioxy group,                 an oxo group, and a hydroxyl group.

The present invention is described in detail as follows.

The term “halogen atoms means a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom.

The term “alkyl group having from 1 to 6 carbon atoms” refers to a linear or branched alkyl group containing 1 to 6 carbon atoms. Examples include a methyl group, an ethyl group, a n-propyl group, an isopropyl group, a n-butyl group, an isobutyl group, a tert-butyl group, a sec-butyl group, a n-pentyl group, an isopentyl group, a neopentyl group, a tert-pentyl group, and a n-hexyl group.

The term “cycloalkyl group having from 3 to 8 carbon atoms” refers to a cycloalkyl group containing 3 to 8 carbon atoms. Examples include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, and a cyclohexyl group.

The term “alkenyl group having from 2 to 8 carbon atoms” refers to a linear or branched alkenyl group containing 2 to 8 carbon atoms. Examples include a vinyl group, an allyl group, a 1-propenyl group, an isopropenyl group, a 1-butenyl group, a 2-butenyl group, a 3-butenyl group, a 1,3-butadienyl group, a 2-methylallyl group, a 2-methyl-propenyl group, a 2-pentenyl group, and a 3-methyl-but-2-enyl group.

The term “alkynyl group having from 2 to 8 carbon atoms” refers to a linear or branched alkynyl group containing 2 to 8 carbon atoms. Examples include an ethynyl group, a 2-propynyl group, a 2-butynyl group, a 1-methyl-prop-2-ynyl group, a 2-pentynyl group, and a 4-pentynyl group.

The term “alkoxy group having from 1 to 6 carbon atoms” refers to a linear or branched alkoxy group containing 1 to 6 carbon atoms. Examples include a methoxy group, an ethoxy group, a propoxy group, an isopropoxy group, a butoxy group, an isobutoxy group, a sec-butoxy group, a tert-butoxy group, a pentyloxy group, and a hexyloxy group.

The term “alkyl group having from 1 to 10 carbon atoms” refers to a linear or branched alkyl group containing 1 to 10 carbon atoms. Examples include a methyl group, an ethyl group, a n-propyl group, an isopropyl group, a n-butyl group, an isobutyl group, a tert-butyl group, a sec-butyl group, a n-pentyl group, an isopentyl group, a neopentyl group, a tert-pentyl group, a n-hexyl group, a n-heptyl group, a n-octyl group, and a n-hexadecyl group.

The term “alkylthio group having from 1 to 6 carbon atoms” refers to a linear or branched alkylthio group containing 1 to 6 carbon atoms. Examples include a methylthio group, an ethylthio group, a propylthio group, an isopropylthio group, a butylthio group, an isobutylthio group, a pentylthio group, and a hexylthio group.

The term “alkylsulfonyl group having from 1 to 6 carbon atoms” refers to a linear or branched alkylsulfonyl group containing 1 to 6 carbon atoms. Examples include a methanesulfonyl group, an ethanesulfonyl group, a propane-2-sulfonyl group, and a hexanesulfonyl group.

The term “alkoxycarbonyl group having from 2 to 10 carbon atoms” refers to a linear or branched alkoxycarbonyl group containing 2 to 10 carbon atoms. Examples include alkanoyl group having from 2 to 7 carbon atoms such as a methoxycarbonyl group, an ethoxycarbonyl group and a t-butoxycarbonyl group, as well as an octyloxycarbonyl group.

The term “alkanoyl group having from 2 to 7 carbon atoms” refers to a linear or branched alkanoyl group containing 2 to 7 carbon atoms. Examples include an acetyl group, a propanoyl group, a butanoyl group, and a hexanoyl group.

The term “alkanoyl group having from 1 to 6 carbon atoms” refers to a linear or branched alkanoyl group containing 1 to 6 carbon atoms. Examples include a formyl group, an acetyl group, a propanoyl group, and a butanoyl group.

The phrase “amino group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms” is intended to include, for example, an amino group, a methylamino group, an ethylamino group, an isopropylamino group, a hexylamino group, a dimethylamino group, a diethylamino group, a diisopropylamino group, and a dihexylamino group.

The phrase “aminosulfonyl group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms” is intended to include, for example, a sulfamoyl group, a dimethylaminosulfonyl group, and a diethylaminosulfonyl group.

The phrase “carbamoyl group optionally substituted with an alkyl group(s) having from 1 to 4 carbon atoms” is intended to include a carbamoyl group, a methylcarbamoyl group, an ethylcarbamoyl group, and a propylcarbamoyl group.

The phrase “piperazino group which may be substituted” or “optionally substituted piperazino group” refers to a piperazino group which may be substituted (preferably on its nitrogen atom) with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (wherein said alkyl group may be substituted with an amino group which may be substituted with one or two alkyl groups each having 1-6 carbon atoms, a morpholino group, a hydroxyl group, or an alkoxy group having 1-6 carbon atoms), a formyl group, an alkanoyl group having 2-7 carbon atoms, a carbamoyl group which may be substituted with one or two alkyl groups each having 1-4 carbon atoms, an aminosulfonyl group optionally substituted with one or two alkyl groups each having 1-6 carbon atoms, and an alkylsulfonyl group having 1-6 carbon atoms. Specific examples include a piperazino group, a methylpiperazino group, an isopropylpiperazino group, a dimethylaminoethylpiperazino group, and an acetylpiperazino group.

The term “monocylic saturated hydrocarbon group having from 2 to 7 carbon atoms and having a nitrogen atom(s) as a ring atom(s)” means a 3- to 9-membered monocylic saturated hydrocarbon group containing one or two nitrogen atoms as ring-forming atoms and substituted at a ring carbon atom. Examples of the monocylic saturated hydrocarbon group include aziridinyl groups, azetidinyl groups, pyrrolidinyl groups, and piperidinyl groups (e.g., 4-piperidinyl groups).

The term “nitrogen-containing monocyclic unsaturated hydrocarbon group” refers to a 5- or 6-membered unsaturated ring containing 1 to 3 nitrogen atoms as its ring members. Examples include a pyrrolyl group (e.g., a pyrrol-1-yl group), an imidazol-1-yl group (e.g., an imidazolyl group), a pyrazolyl group, a triazol-4-yl group (e.g., a [1,2,4]triazol-4-yl group), and a pyridyl group.

The 3- to 5-membered saturated hydrocarbon ring formed by R^(A) and R^(B) together with the nitrogen atom to which R^(A) and R^(B) are attached is intended to include an aziridinyl group, an azetidinyl group, and a pyrrolidinyl group.

The 3- to 8-membered saturated hydrocarbon ring formed by R⁷ and R⁸ (or R^(C) and R^(D)) together with the nitrogen atom to which R⁷ and R⁸ (or R^(C) and R^(D)) are attached is intended to include an aziridinyl group, an azetidinyl group, a pyrrolidinyl group, and a piperidinyl group.

The term “aryl group” as used herein refers to an aromatic hydrocarbon group, a partially saturated aromatic hydrocarbon group, an aromatic heterocyclic group, or a partially saturated aromatic heterocyclic ring. The aromatic hydrocarbon group refers to, for example, an aromatic hydrocarbon group containing 6-14 carbon atoms, including a phenyl group, a naphthyl group, and an anthryl group.

The partially saturated aromatic hydrocarbon group refers to a group obtained by partial saturation of a polycyclic aromatic hydrocarbon group having 6-14 carbon atoms. Examples include a tetrahydronaphthyl group and an indanyl group.

The aromatic heterocyclic group refers to a monocylic or polycyclic aromatic heterocyclic group containing 2-13 carbon atoms and having 1-6 hetero atoms (e.g., oxygen, sulfur and/or nitrogen atoms). Examples include a thienyl group, a furanyl group, a pyrrolyl group, an isothiazolyl group, an isoxazolyl group, a pyrazolyl group, a thiazolyl group, an oxazolyl group, an imidazolyl group, a pyridyl group, a pyridazinyl group, a pyrimidinyl group, a pyrazinyl group, a benzothienyl group, a benzofuranyl group, an indolyl group, a benzothiazolyl group, a benzoxazolyl group, a benzimidazolyl group, a quinolinyl group, an isoquinolinyl group, a benzoxadiazolyl group, a benzothiadiazolyl group, and a pyrazolopyrimidinyl group (e.g., a 5,7-dimethyl-pyrazolo[1,5-a]pyrimidin-2-yl group).

The partially saturated aromatic heterocyclic ring refers to a heterocyclic ring obtained by partial saturation of a polycyclic aromatic heterocyclic group. Such a heterocyclic ring may be substituted with an oxo group. Examples include a dihydroquinolinonyl group:

a dihydrobenzofuranyl group, a dihydrobenzodioxinyl group, a dihydrobenzodioxepinyl group, a benzodioxolyl group, a dihydrobenzoxazolyl group, and a dihydrobenzoxazinyl group,

In a case where such an aryl group is substituted, substituents for the aryl group include those listed below and the aryl group can be substituted with 1 to 5 of these substituents:

a halogen atom, a cyano group, a nitro group, a sulfamoyl group, a hydroxyl group, a carboxyl group, an alkyl group having 1-6 carbon atoms, a trifluoromethyl group, a methoxycarbonylethyl group, an alkoxy group having 1-6 carbon atoms (the alkoxy group is optionally substituted with a phenyl group, an alkylamino group having 1-6 carbon atoms, a dialkylamino group having 2-12 carbon atoms, or a morpholino group), a trifluoromethoxy group, a difluoromethoxy group, a cyanoethoxy group,

an alkenyl group having 2-8 carbon atoms, an alkynyl group having 2-8 carbon atoms,

a cycloalkyl group having 3-8 carbon atoms, an alkanoyl group having 2-7 carbon atoms, a trifluoroacetyl group, an alkoxycarbonyl group having 2-10 carbon atoms,

a phenyl group (the phenyl group is optionally substituted with an alkanoyl group having 2-7 carbon atoms or an alkoxy group having 1-6 carbon atoms),

a phenoxy group optionally substituted with an alkoxy group having 1-6 carbon atoms,

a pyrazolyl group, a 1-methyl-5-trifluoromethyl-1H-pyrazol-3-yl group, a methylpyrimidinyl group, a 2-methylsulfanyl-pyrimidin-4-yl groups, an oxazolyl group (e.g., oxazol-5-yl group), an isooxazol-5-yl group, a 5-trifluoromethyl-isooxazol-3-yl group, a pyridyloxy group (e.g., 4-pyridyloxy group), a pyridinecarbonyl group, a benzoyl group, a pyrrolyl group (e.g., pyrrol-1-yl group), an imidazolyl group (e.g., imidazol-1-yl group), a thiazolyl group, a [1,2,3]thiadiazol-4-yl group, a triazolyl group (e.g., [1,2,4]triazol-4-yl group), an alkylthio group having 1-6 carbon atoms (e.g., methylthio group), an alkylsulfonyl group having 1-6 carbon atoms (e.g., methanesulfonyl group), a benzenesulfonyl group, a pyrrolidinesulfonyl group, a morpholinylsulfonyl group, a 4-piperidinyl group optionally substituted with an alkyl group having 1-6 carbon atoms, a morpholino group optionally substituted with an alkyl group having 1-6 carbon atoms, a piperazino group substituted with an alkyl group having 1-6 carbon atoms or an alkyl group having 1-6 carbon atoms and substituted with a dimethylamino group, or a group represented by Formula —NR⁷R⁸, where R⁷ and R⁸ each represent a hydrogen atom, an alkyl group having 1-6 carbon atoms (the alkyl group is optionally substituted with an alkoxy group having 1-6 carbon atoms or a dimethylamino group), an alkanoyl group having 1-6 carbon atoms, a carbamoyl group, a carbamoyl group substituted with an alkyl group(s) having 1-4 carbon atoms, a morpholinocarbonyl group, a dimethylaminosulfonyl group, or an alkylsulfonyl group having 1-6 carbon atoms, or R⁷ and R⁸ optionally form, together with the nitrogen atom to which R⁷ and R⁸ are attached, to form a 3- to 8-membered saturated hydrocarbon ring, which ring is optionally substituted with a dimethylenedioxy group, an oxo group, or a hydroxyl group, (e.g., acetamide groups, dimethylamino groups, methylureido groups, butylureido groups, trimethylureido groups, morpholinylcarbonylamino), a methoxyethylureido group, a pyridylethoxycarbonylamino group.

The term “pharmaceutically acceptable salt” refers to a salt with an alkali metal, an alkaline earth metal, ammonium or an alkylammonium, or a salt with a mineral acid or an organic acid. Examples include a sodium salt, a potassium salt, a calcium salt, an ammonium salt, an aluminum salt, a triethylammonium salt, an acetate salt, a propionate salt, a butyrate salt, a formate salt, a trifluoroacetate salt, a maleate salt, a tartrate salt, a citrate salt, a stearate salt, a succinate salt, an ethylsuccinate salt, a lactobionate salt, a gluconate salt, a glucoheptate salt, a benzoate salt, a methanesulfonate salt, an ethanesulfonate salt, a 2-hydroxyethanesulfonate salt, a benzenesulfonate salt, a paratoluenesulfonate salt, a lauryl sulfate salt, a malate salt, an aspartate salt, a glutamate salt, an adipate salt, a salt with cysteine, a salt with N-acetylcysteine, a hydrochloride salt, a hydrobromide salt, a phosphate salt, a sulfate salt, a hydroiodide salt, a nicotinate salt, an oxalate salt, a picrate salt, a thiocyanate salt, an undecanoate salt, a salt with an acrylate polymer, and a salt with a carboxyvinyl polymer.

The compounds of the present invention may have stereoisomers including optical isomers, diastereoisomers and geometrical isomers. All of these stereoisomers and mixtures thereof also fall within the scope of the present invention. Some of the compounds and intermediates of the present invention may also exist, e.g., as keto-enol tautomers.

As shown in Test Example below, the compounds of the present invention show strong activity in an action of inhibiting binding between S1P and its receptor, Edg-1 (S1P1). Thus, the compounds are expected to have preventive or therapeutic effects on autoimmune diseases, such as Crohn disease, hypersensitivity colitis, Sjogren's syndrome, multiple sclerosis, and systemic lupus erythematosus, and diseases such as rheumatoid arthritis, asthma, atopic dermatitis, organ transplant rejection, cancer, retinopathy, psoriasis, osteoarthritis, and age-related macular degeneration.

Preferred embodiments of the compound of the present invention are described as follows.

A preferred example of A is an oxygen atom or —NR⁶— (it is preferable that R⁶ be hydrogen). A more preferred example of A is an oxygen atom.

A preferred example of R¹ is an alkyl group having 1-6 carbon atoms which may be substituted with a halogen atom(s), or a benzyl group which may be substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having 1-6 carbon atoms. More preferred is a methyl group, an ethyl group, or a benzyl group which may be substituted with a halogen atom(s), and even more preferred is a methyl group.

A preferred example of R^(1A) is a hydrogen atom.

Preferred examples of R² are an ethyl group and a cyclopropyl group.

A preferred example of R⁴ is a hydrogen atom.

In a preferred embodiment, R³ is: a optionally substituted phenyl group; a 2-naphthyl group (the naphthyl group is optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having 1-6 carbon atoms); a 3-pyrazolyl group (the pyrazolyl group is optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group), a trifluoromethyl group, and a halogen atom); or a 5-benzothiazolyl group, a 5-benzothiadiazolyl group, a 7-dihydroquinolinonyl group, a 7-isoquinolinyl group, a 7-quinolinyl group, a 3-pyridyl group, or an indolyl group (preferably a 6-indolyl group), each optionally substituted with an alkyl group(s) having 1-6 carbon atoms (preferably a methyl group).

The “optionally substituted phenyl group” in the preferred embodiment of R³ includes unsubstituted phenyl groups and substituted phenyl groups (A)-(C) below:

(A) a phenyl group substituted at 4 position with a substituent selected from the group consisting of an alkyl group having 1-6 carbon atoms, a cycloalkyl group having 3-8 carbon atoms, an alkoxy group having 1-6 carbon atoms (the alkoxy group is optionally substituted with a substituent(s) selected from the group consisting of an amino group substituted with two alkyl groups each having 1-4 carbon atoms, a morpholino group, and a phenyl group), a halogen atom, a trifluoromethoxy group, a phenoxy group, a phenyl group, a 1-pyrrolyl group, and —NR^(A)R^(B) (R^(A) and R^(B) are alkyl groups each having 1-6 carbon atoms, or R^(A) and R^(B) optionally form, together with the nitrogen atom to which R^(A) and R^(B) are attached, a 3- to 5-membered saturated hydrocarbon ring), which phenyl group substituted at 4 position is optionally further substituted at 3 position with a substituent selected from the group consisting of an alkyl group having 1-6 carbon atoms, a halogen atom, and an alkoxy group having 1-6 carbon atoms; (B) a phenyl group substituted at 3 position with a substituent selected from the group consisting of a hydroxyl group, an alkyl group having 1-6 carbon atoms, and an alkoxy group having 1-6 carbon atoms (the alkoxy group is optionally substituted with a substituent(s) selected from the group consisting of an amino group substituted with two alkyl groups each having 1-4 carbon atoms, a morpholino group, and a phenyl group), which phenyl group substituted at 3 position is optionally further substituted with one or two alkyl groups each having 1-6 carbon atoms, or is optionally further substituted at 4 position with a halogen atom; and (C) a phenyl group substituted at 3 position with a substituent selected from the group consisting of nitrogen-containing groups (i)-(v) below and, in some cases, optionally further substituted at 4 position with a halogen atom, which nitrogen-containing groups preferably have a tertiary nitrogen and are attached to the phenyl group at a nitrogen atom:

-   -   (i) a monocylic saturated hydrocarbon group having 2-7 carbon         atoms, having a nitrogen atom(s) as a ring atom(s), and         substituted with a phenyl group at a carbon atom (the saturated         hydrocarbon group is optionally substituted with an alkyl         group(s) having 1-6 carbon atoms) (e.g., a piperidinyl group         optionally substituted with an alkyl group(s) having 1-6 carbon         atoms, such as a 4-piperidinyl group);     -   (ii) a nitrogen-containing monocylic unsaturated hydrocarbon         group (e.g., a pyrrolyl group, an imidazolyl group);     -   (iii) a morpholinyl group optionally substituted with an alkyl         group(s) having 1-6 carbon atoms, such as a morpholino group;     -   (iv) an optionally substituted piperazino group (e.g., a         piperazino group optionally substituted (preferably on a         nitrogen atom constituting a ring) with a substituent(s)         selected from the group consisting of an alkyl group having 1-6         carbon atoms (the alkyl group is optionally substituted with a         substituent(s) selected from the group consisting of an amino         group substituted with two alkyl groups each having 1-4 carbon         atoms, and a morpholino group), and an alkanoyl group having 2-7         carbon atoms); and     -   (v) Formula —NR⁷R⁸, in which R⁷ and R⁸ each represent a hydrogen         atom, an alkyl group having 1-6 carbon atoms (the alkyl group is         optionally substituted with an amino group optionally         substituted with one or two alkyl groups each having 1-6 carbon         atoms, a morpholino group, a hydroxyl group, or an alkoxy group         having 1-6 carbon atoms), an alkanoyl group having 1-6 carbon         atoms, a carbamoyl group optionally substituted with one or two         alkyl groups each having 1-4 carbon atoms, a morpholinocarbonyl         group, an aminosulfonyl group optionally substituted with one or         two alkyl groups each having 1-6 carbon atoms, or an         alkylsulfonyl group having 1-6 carbon atoms, or R⁷ and R⁸         optionally form, together with the nitrogen atom to which R⁷ and         R⁸ are attached, a 3- to 8-membered saturated hydrocarbon ring,         which ring is optionally substituted with a substituent(s)         selected from the group consisting of a dimethylenedioxy group,         an oxo group, and a hydroxyl group.

It is preferable that Formula —NR⁷R⁸ in item (v) above be —NR^(C)R^(D) as defined below.

R^(C) and R^(D) each represent a hydrogen atom, an alkyl group having 1-6 carbon atoms (the alkyl group is optionally substituted with an amino group optionally substituted with one or two alkyl groups each having 1-4 carbon atoms, a hydroxyl group, or an alkoxy group having 1-4 carbon atoms), a formyl group, an acetyl group, an aminocarbonyl group, a dimethylaminosulfonyl group, or a methylsulfonyl group, or R^(C) and R^(D) optionally form, together with the nitrogen atom to which R^(C) and R^(D) are attached, a 3- to 8-membered saturated hydrocarbon ring, which ring is optionally substituted with a substituent(s) selected from the group consisting of a dimethylenedioxy group, an oxo group, and a hydroxyl group.

In an especially preferred embodiment, R³ is a phenyl group substituted at 4 position with a fluorine atom or a chlorine atom, a 6-indolyl group, and nitrogen-containing groups (i), (iv), and (v) shown in item (C) above, which phenyl group substituted with a substituent selected from the above group is optionally further substituted at 4 position with a halogen atom.

In a preferred embodiment, R⁵ is: an alkyl group having 1-10 carbon atoms (preferably 1-6 carbon atoms) and substituted with a cycloalkyl group having 3-8 carbon atoms; an alkyl group having 1-10 carbon atoms (preferably 1-6 carbon atoms) and substituted with a naphthyl group; an alkenyl group having 2-8 carbon atoms (preferably 2-6 carbon atoms) and substituted with a phenyl group; a phenyl group or a naphthyl group (preferably 2-naphthyl group) each optionally substituted with 1-5 substituents selected from the group consisting of an alkyl group having 1-6 carbon atoms, a halogen atom, an alkoxy group having 1-6 carbon atoms, a trifluoromethoxy group, a difluoromethoxy group, a trifluoromethyl group, an alkenyl group having 1-6 carbon atoms, an alkylsulfonyl group having 1-6 carbon atoms, an alkanoyl group having 2-7 carbon atoms, an alkoxycarbonyl group having 2-7 carbon atoms, and a cyano group; a pyrrolyl group optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group) and a methoxycarbonyl group; a furanyl group optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group), a trifluoromethyl group, and a halogen atom; a thienyl group optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group), a trifluoromethyl group, a thiadiazolyl group, an oxazolyl group, and a halogen atom; or a benzothienyl group (preferably a 2-benzothienyl group), a phenyl group condensed with a 5- to 7-membered saturated hydrocarbon ring which may contain one or two oxygen atoms as ring-forming atoms (e.g., a dihydrobenzodioxepinyl group, a benzodioxolyl group, a dihydrobenzodioxynyl group, a dihydrobenzofuranyl group, a tetrahydronaphthyl group, an indanyl group), a thiadiazolyl group, a benzoxadiazolyl group, or a benzothiadiazolyl group (preferably 5-benzothiadiazolyl groups), each optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group) and a halogen atom.

In a preferred embodiment of R⁵, examples of the “phenyl group which is optionally substituted” include an unsubstituted phenyl group, a phenyl group substituted with 1-5 substituents selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group), an alkoxy group having 1-6 carbon atoms (preferably a methoxy group), and a halogen atom, and a phenyl group substituted at either 3 or 4 position or both and substituted with 1-3 substituents selected from the group consisting of an alkyl group having 1-6 carbon atoms, a halogen atom, an alkoxy group having 1-6 carbon atoms (preferably a methoxy group), a trifluoromethoxy group, a difluoromethoxy group, a trifluoromethyl group, an alkenyl group having 1-6 carbon atoms, an alkylsulfonyl group having 1-6 carbon atoms (preferably a methylsulfonyl group), a methoxycarbonyl group, an acetyl group, and a cyano group, preferably a halogen atom, a methyl group, and a methoxy group, and more preferably a halogen atom.

In a preferred embodiment of R⁵, an example of the “naphthyl group which is optionally substituted” is a naphthyl group optionally substituted with a substituent(s) (preferably 1-3 substituents) selected from the group consisting of a halogen atom, an alkyl group having 1-6 carbon atoms (preferably a methyl group), a cyano group, and an alkylsulfonyl group having 1-6 carbon atoms (preferably a methylsulfonyl group). More preferably, it is a naphthyl group optionally substituted with a substituent(s) selected from the group consisting of a halogen atom, an alkyl group having 1-6 carbon atoms (preferably a methyl group), and a cyano group. Examples in a case of a 2-naphthyl group include an unsubstituted 2-naphthyl group and a 2-naphthyl group substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (substituted at any position, preferably at 5, 7 and/or 8 position) and other substituents (substituted at 5, 7 and/or 8 position). Examples in a case of a 1-naphthyl group include an unsubstituted 1-naphthyl group and a 1-naphthyl group substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (substituted at any position) and other substituents, preferably a halogen atom (substituted preferably at 4 position).

In an especially preferred embodiment, R⁵ is a phenyl group substituted at 3 and 4 positions with a halogen atom, an unsubstituted 2-naphthyl group, and a 2-naphthyl group substituted at 5, 7 and/or 8 position with a substituent(s) selected from the group consisting of a halogen atom, an alkyl group having 1-6 carbon atoms (preferably a methyl group), and a cyano group.

The following are combinations of R³ and R⁵ that are especially preferred. In a case in which R³ is a phenyl group substituted at 4 position with a fluorine atom or a chlorine atom, R⁵ is: an alkyl group having 1-10 carbon atoms (preferably 1-6 carbon atoms) and substituted with a naphthyl group; an alkenyl group having 2-8 carbon atoms (preferably 2-6 carbon atoms) and substituted with a phenyl group; a substituted phenyl group (e.g., a phenyl group substituted with 1-5 methyl groups, a phenyl group substituted at either 3 or 4 position or both and substituted with 1-3 substituents selected from the group consisting of an alkyl group having 1-6 a carbon atom (preferably a methyl group, an ethyl group, a propyl group), a halogen atom, a methoxy group, a trifluoromethoxy group, a difluoromethoxy group, a trifluoromethyl group, an alkenyl group having 1-6 carbon atoms (preferably a vinyl group), a methoxycarbonyl group, an acetyl group, and a cyano group; a benzothienyl group; a naphthyl group optionally substituted with a substituent(s) selected from the group consisting of a halogen atom, an alkyl group having 1-6 carbon atoms (preferably a methyl group), a cyano group, and an alkylsulfonyl group having 1-6 carbon atoms (preferably a methylsulfonyl group); a pyrrolyl group optionally substituted with a substituent(s) selected from the group consisting of a methyl group and a methoxycarbonyl group; a thienyl group substituted with an alkyl group(s) having 1-6 carbon atoms (preferably a methyl group); a benzodioxolyl group; a dihydrobenzodioxynyl group; a dihydrobenzofuranyl group; a tetrahydronaphthyl group; an indanyl group; or a benzothiadiazolyl group (preferably a 5-benzothiadiazolyl group).

In a case in which R³ is a 6-indolyl group, R⁵ is: an alkyl group having 1-10 carbon atoms (preferably 1-6 carbon atoms) and substituted with a naphthyl group; an alkenyl group having 2-8 carbon atoms (preferably 2-6 carbon atoms) and substituted with a phenyl group; a phenyl group which is optionally substituted (e.g., an unsubstituted phenyl group, a phenyl group substituted with 1-5 methyl groups, a phenyl group substituted at either 3 or 4 position or both and substituted with 1-3 substituents selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group, an ethyl group, a propyl group), a halogen atom, a methoxy group, a trifluoromethoxy group, a difluoromethoxy group, a trifluoromethyl group, an alkenyl group having 1-6 carbon atoms (preferably a vinyl group), a methoxycarbonyl group, an acetyl group, and a cyano group); a benzothienyl group; a naphthyl group optionally substituted with a substituent(s) selected from the group consisting of a halogen atom, an alkyl group having 1-6 carbon atoms (preferably a methyl group), a cyano group, and an alkylsulfonyl group having 1-6 carbon atoms (preferably a methylsulfonyl group); a pyrrolyl group optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group) and a methoxycarbonyl group: or a benzodioxolyl group, a dihydrobenzodioxynyl group, a dihydrobenzofuranyl group, a tetrahydronaphtyl group, an indanyl group, or a benzothiadiazolyl group (preferably, 5-benzothiadiazolyl group), each optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group) and a halogen atom.

In a case in which R³ is of the embodiment shown in item (C) above, R⁵ is: an alkyl group having 1-6 carbon atoms and substituted with a cycloalkyl group having 3-8 carbon atoms: an alkyl group having 1-10 carbon atoms (preferably 1-6 carbon atoms) and substituted with a naphthyl group; an alkenyl group having 2-8 carbon atoms (preferably 2-6 carbon atoms) and substituted with a phenyl group; a optionally substituted phenyl group (e.g., an unsubstituted phenyl group, a phenyl group substituted with 1-5 substituents selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group) and a halogen atom, a phenyl group substituted at 3 or 4 position or both and substituted with 1-3 substituents selected from the group consisting of an alkyl group having 1-6 carbon atoms, a halogen atom, a methoxy group, a trifluoromethoxy group, a difluoromethoxy group, a trifluoromethyl group, an alkenyl group having 1-6 carbon atoms, an alkylsulfonyl group having 1-6 carbon atoms (preferably a methylsulfonyl group), a methoxycarbonyl group, an acetyl group, and a cyano group; a naphthyl group optionally substituted with a substituent(s) selected from the group consisting of a halogen atom, an alkyl group having 1-6 carbon atoms (preferably a methyl group), a cyano group, and an alkylsulfonyl group having 1-6 carbon atoms (preferably a methylsulfonyl group); a pyrrolyl group optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group) and a methoxycarbonyl group; a thienyl group optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group), a trifluoromethyl group, a thiadiazolyl group, an oxazolyl group, and a halogen atom; a furanyl group optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group), a trifluoromethyl group, and a halogen atom; or a benzothienyl group, a benzodioxolyl group, a dihydrobenzodioxynyl group, a dihydrobenzofuranyl group, a tetrahydronaphthyl group, an indanyl group, a thiadiazolyl group (preferably a 5-thiadiazolyl group), a benzoxadiazolyl group, or a benzothiadiazolyl group (preferably a 5-benzothiadiazolyl group), each optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having 1-6 carbon atoms (preferably a methyl group) and a halogen atom.

A preferred optically-active compound of the present compound having R^(1A) being a hydrogen atom has the structure below.

The compound of the present invention can be synthesized by, for instance, the method described below.

(where R¹, R^(1A), R², R³, and R⁵ are as defined above, R′ represents an alkyl group having 1-6 carbon atoms, R″ represents a protecting group for an amino group, which protecting group is stable under a basic condition (e.g., a t-butoxycarbonyl group, a benzyloxycarbonyl group), L represents a leaving group (e.g., a halogen atom, such as a chlorine atom, a bromine atom, and an iodine atom, an alkylsulfonyloxy group, such as an a methanesulfonyloxy group and a p-toluenesulfonyloxy group, an arylsulfonyloxy group, a 2-oxo-1-oxazolyl group), and A¹ represents an oxygen atom, a sulfur atom, or a group represented by —NR⁶—, where R⁶ represents a hydrogen atom or an alkyl group having 1-6 carbon atoms.)

In the present invention, a compound having A being an oxygen atom, a sulfur atom, or a group represented by —NR⁶— can be synthesized by, for instance, the method shown in Scheme 1.

The compound represented by Formula (b) can be obtained by allowing the compound represented by Formula (a) to react with hydrazine in a solvent or in the absence of a solvent. The amount of the hydrazine used is generally 1-30 equivalent weight with respect to Compound (a), preferably 5-30 equivalent weight. A solvent to be used when it is necessary is not particularly limited, as long as it is inert. Examples of the solvent to be used include alcohols such as methanol and ethanol. The reaction temperature is generally a room temperature to a solvent reflux temperature. The reaction time is generally 12-24 hours, but it depends on the reaction temperature and starting compounds.

The compound represented by Formula (d) can be obtained by allowing the compound represented by Formula (b) to react with the compound represented by Formula (c) in a solvent or in the absence of a solvent. The amount of the compound represented by Formula (c) to be used is generally 1-3 equivalent weight with respect to the compound represented by Formula (b), preferably 1.1-1.5 equivalent weight. A solvent to be used when it is necessary is not particularly limited, as long as it is inert. For instance, alcohols, such as methanol and ethanol, and halogenated hydrocarbons, such as dichloromethane and chloroform, are preferably used. The reaction temperature is generally a room temperature to a solvent reflux temperature. The reaction time is generally 30 minutes to 24 hours, but it depends on the reaction temperature and starting compounds.

The compound represented by Formula (e) can be obtained by allowing the compound of Formula (d) to react with a base in a solvent or in the absence of a solvent to cyclize. The base to be used includes alkali metal hydroxides such as NaOH and KOH, and alkali metal salts such as NaHCO₃ and K₂CO₃. The amount of the base used is 1-10 equivalent weight with respect to the compound represented by Formula (d), preferably 1.1-1.5 equivalent weight. If a solvent is necessary, the following can be used as the solvent: water, alcohols such as methanol and ethanol, ethers such as dioxane and tetrahydrofuran (THF), and mixed solvents thereof. The reaction temperature is generally a room temperature to a solvent reflux temperature. The reaction time is generally a period of 30 minutes to 24 hours, but it depends on the reaction temperature and starting compounds.

The compound represented by Formula (g) can be obtained by allowing, in a solvent or in the absence of a solvent, the compound represented by Formula (e) to react with the compound represented by Formula (f) in the presence of a base. The amount of the compound represented by Formula (f) to be used is generally 1-5 equivalent weight, preferably 1.1-1.5 equivalent weight, with respect to the compound represented by Formula (e). The base to be used includes alkali metal hydroxides, such as NaOH and KOH, alkali metal salts, such as NaHCO₃ and K₂CO₃, and amines, such as triethylamine, diisopropylethylamine, and diisopropylamine. The amount of the base used is 1-10 equivalent weight with respect to the compound represented by Formula (e), preferably 1.0-3.0 equivalent weight. The reaction temperature is 0° C. to a solvent reflux temperature, preferably 0° C. to a room temperature. A solvent to be used when it is necessary is not particularly limited, as long as it is inert. Examples of the solvent to be used include water, ethers such as dioxane and THF, dimethylformamide (DMF), N,N′-dimethylacetamide (DMA), N,N′-dimethylpropyleneurea (DMPU), hexamethylphosphoramide (HMPA), and mixed solvents thereof. The reaction time is generally a period of 30 minutes to 24 hours, but it depends on the reaction temperature and starting compounds.

The compound represented by Formula (h) can be obtained by allowing the compound represented by Formula (g) to react with an oxidant in a solvent. Examples of the solvent to be used include organic peroxyacids such as m-chloroperbenzoic acid, magnesium monoperphthalate hexahydrate, peroxyacetic acid, and peroxyformic acid, inorganic or organic peroxides such as hydrogen peroxide, hydrogen peroxide urea adduct/phthalic anhydride, tert-butylhydroperoxide, and cumenehydroperoxide, sodium periodate, Oxone (registered trademark), N-bromosuccinimide, N-chlorosuccinimide, chloramine-T, hypochlorite tert-butyl, iodobenzene diacetate, and bromine-1,4-diazabicyclo[2,2,2]octane addition complex. The amount of the oxidant used is 2-10 equivalent weight with respect to the compound represented by Formula (g), preferably 2-3 equivalent weight. A solvent to be used when it is necessary is not particularly limited, as long as it is inert. Examples of the solvent to be used include halogenated hydrocarbons such as methylene chloride and chloroform. The reaction temperature is 0° C. to a solvent reflux temperature, preferably 0° C.-40° C. The reaction time is generally a period of 30 minutes to 24 hours, but it depends on the reaction temperature and starting compound.

The compound represented by Formula (I) or a salt of the compound can be obtained by subjecting the compound represented by Formula (h) to deprotection of an amino group in a solvent under a conventional condition, e.g., allowing it to react with an acid. Examples of the acid used include inorganic acids (e.g., hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid, nitric acid) and organic acids (e.g., trifluoroacetic acid, p-toluenesulfonic acid, methanesulfonic acid). The amount of the acid used is 1-50 equivalent weight with respect to the compound represented by Formula (h). The reaction temperature is 0° C. to a solvent ref lux temperature, preferably a room temperature to 40° C. A solvent to be used when it is necessary is not particularly limited, as long as it is inert. Examples of the solvent to be used include halogenated hydrocarbons such as methylene chloride and chloroform. The reaction time is generally a period of 30 minutes to 24 hours, but it depends on the reaction temperature and starting compound.

The compound represented by Formula (k) or a pharmaceutically acceptable salt of the compound can be obtained by allowing, in a solvent or in the absence of a solvent, the compound represented by Formula (I) to react with the compound represented by Formula (j) (where A¹ represents an oxygen atom, a sulfur atom, or a group represented by Formula —NR⁶—, and R³ is as defined above) in the presence of a base and, when necessary, forming a salt. The amount of the compound of Formula (j) to be used is generally 1-5 equivalent weight with respect to the compound represented by Formula (l), preferably 1-3 equivalent weight. Examples of the base used include alkali metal salts, such as sodium carbonate, potassium carbonate, cesium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium hydroxide, dimsyl sodium, sodium hydride, sodium amide, tert-butoxypotassium, and tert-butoxysodium, amines, such as triethylamine, diisopropylamine, pyrrolidine, and piperidine, sodium acetate, and potassium acetate. The amount of the base used is generally 1-10 equivalent weight with respect to the compound represented by Formula (l), preferably 1-3 equivalent weight. The reaction temperature is 0° C. to a solvent reflux temperature, and it can be carried out under ordinary pressure, increased pressure, microwave irradiation, or the like. The reaction solvent to be used includes ethers such as dioxane and THF, DMF, DMA, DMPU, HMPA, or the like, or mixed solvents thereof. The reaction time is generally a period of 1-12 hours, but it depends on the reaction temperature and starting compound.

The compound represented by Formula (m) or a pharmaceutically acceptable salt of the compound can be obtained by allowing, in a solvent or in the absence of a solvent, the compound represented by Formula (k) to react with the compound represented by Formula (l) in the presence of a base and, when necessary, forming a salt. The amount of the compound represented by Formula (l) used is 1-5 equivalent weight with respect to the compound represented by Formula (k), preferably 1-1.2 equivalent weight. The base to be used includes alkali metal hydroxides, such as NaOH and KOH, alkali metal salts, such as NaHCO₃ and K₂CO₃, or amines, such as triethylamine, diisopropylethylamine, and diisopropylamine. The amount of the base used is 1-10 equivalent weight with respect to the compound represented by Formula (k), preferably 1.0-3.0 equivalent weight. The reaction temperature is 0° C. to a solvent ref lux temperature, preferably 0° C. to a room temperature. A solvent to be used when it is necessary is not particularly limited, as long as it is inert. Examples of the solvent to be used include halogenated hydrocarbons such as methylene chloride and chloroform, ethers such as dioxane and THF, and mixed solvents thereof. The reaction time is generally a period of 30 minutes to 24 hours, but it depends on the reaction temperature and starting compound.

(where R¹, R^(1A), R², R³, R⁴, R⁵, R′, R″, A, and L are as defined above, and R⁴¹ is the same as R⁴ excluding the hydrogen atom).

In the present invention, a compound having A represented by Formula —SO— or Formula —SO₂— can be synthesized by the method shown in Scheme 2.

The compound represented by Formula (m2), the compound represented by Formula (m3), or pharmaceutically acceptable salts of the compounds can be obtained by allowing, among the compounds obtained in Scheme 1 and represented by Formula (m), the compound represented by Formula (m1) having A¹ being a sulfur atom to react with an oxidant and, when necessary, forming a salt. Examples of the oxidant to be used include organic peroxyacids such as m-chloroperbenzoic acid, magnesium monoperphthalate hexahydrate, peroxyacetic acid, and peroxyformic acid, inorganic or organic peroxides such as hydrogen peroxide, hydrogen peroxide urea adduct/phthalic anhydride, tert-butylhydroperoxide, and cumenehydroperoxide, sodium periodate, Oxone (registered trademark), N-bromosuccinimide, N-chlorosuccinimide, chloramine-T, hypochlorite tert-butyl, iodobenzene diacetate, and bromine-1,4-diazabicyclo[2,2,2]octane addition complex. The amount of the oxidant used is 1-10 equivalent weight with respect to the compound represented by Formula (m1), preferably 1-3 equivalent weight. A solvent to be used when it is necessary is not particularly limited, as long as it is inert. Examples of the solvent to be used include halogenated hydrocarbons such as methylene chloride and chloroform. The reaction temperature is −78° C. to a solvent ref lux temperature, preferably 0°-40° C. The reaction time is generally a period of 30 minutes to 24 hours, but it depends on the reaction temperature and starting compound.

In the present invention, a compound having A represented by —CH₂— can be synthesized by the method shown in Scheme 3.

The compound represented by Formula (o) can be obtained by allowing the compound represented by Formula (a) to react with the compound represented by Formula (n) (R² is as defined above) in a solvent or in the absence of a solvent. The amount of the compound represented by Formula (n) to be used is 1-10 equivalent weight with respect to the compound represented by Formula (a), preferably 1-1.2 equivalent weight. A solvent to be used when it is necessary is not particularly limited, as long as it is inert. Examples of the solvent to be used include alcohols such as methanol and ethanol. The reaction temperature is generally a room temperature to a solvent reflux temperature, preferably a room temperature to 50° C. The reaction time is generally a period of 12-24 hours, but it depends on the reaction temperature and starting compound.

The compound represented by Formula (p) can be obtained by allowing the compound represented by Formula (o) to react with a Lawesson's reagent in a solvent or in the absence of a solvent. The amount of the Lawesson's reagent used is 1-5 equivalent weight with respect to the compound represented by Formula (o), preferably 1-1.2 equivalent weight. The reaction solvent to be used includes ethers such as dioxane and THF, and mixed solvents thereof. The reaction temperature is a room temperature to a solvent reflux temperature, preferably a room temperature to 50° C. The reaction time is generally 1-12 hours, but it depends on the reaction temperature and starting compounds.

The compound represented by Formula (r) can be obtained by allowing the compound represented by Formula (p) to react with the compound represented by Formula (q) in the presence of a mercury compound. The amount of the compound represented by Formula (q) to be used is 1-10 equivalent weight with respect to the compound represented by Formula (p), preferably 1-1.2 equivalent weight. Examples of the mercury compound include HgCl₂ and Hg(OAc)₂. The amount of the mercury compound used is 1-10 equivalent weight with respect to the compound represented by Formula (p), preferably 1-1.2 equivalent weight. The solvent to be used includes acetonitrile, THF, dioxane, and the like. The reaction temperature is a room temperature to a solvent reflux temperature, preferably a room temperature to 50° C. The reaction time is generally a period of 12-48 hours, but it depends on the reaction temperature and starting compound.

The compound represented by Formula (kl) or a salt of the compound can be obtained by subjecting the compound represented by Formula (r) to deprotection of an amino group in a solvent under a conventional condition, e.g., allowing it to react with an acid. Examples of the acid include inorganic acids (e.g., hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid, nitric acid) and organic acids (e.g., trifluoroacetic acid, p-toluenesulfonic acid, methanesulfonic acid). The amount of the acid used is 1-50 equivalent weight with respect to the compound represented by Formula (r). The reaction temperature is 0° C. to a solvent reflux temperature, preferably a room temperature to 40° C. A solvent to be used when it is necessary is not particularly limited, as long as it is inert. Examples of the solvent to be used include halogenated hydrocarbons such as methylene chloride and chloroform. The reaction time is generally a period of 30 minutes to 24 hours, but it depends on the reaction temperature and starting compound.

The compound represented by Formula (m4) or a pharmaceutically acceptable salt of the compound can be obtained by allowing, in a solvent or in the absence of a solvent, the compound represented by Formula (kl) to react with the compound represented by Formula (l) in the presence of a base and, when necessary, forming a salt. The amount of the compound represented by Formula (l) to be used is 1-5 equivalent weight with respect to the compound represented by Formula (kl), preferably 1-1.2 equivalent weight. The base to be used includes alkali metal hydroxides, such as NaOH and KOH, alkali metal salts, such as NaHCO₃ and K₂CO₃, and amines, such as triethylamine, diisopropylethylamine, and diisopropylamine. The amount of the base is 1-10 equivalent weight, preferably 1.0-3.0 equivalent weight. The reaction temperature is 0° C. to a solvent reflux temperature, preferably 0° C. to a room temperature. A solvent to be used when it is necessary is not particularly limited, as long as it is inert. Examples of the solvent to be used include halogenated hydrocarbons such as methylene chloride and chloroform, ethers such as dioxane and THF, and mixed solvents thereof. The reaction time is generally a period of 30 minutes to 24 hours, but it depends on the reaction temperature and starting compound.

The compound represented by Formula (u) or a pharmaceutically acceptable salt of the compound can be obtained by allowing, in a solvent or in the absence of a solvent, the compound represented by Formula (m5) to react with the compound represented by Formula (s) in the presence of a base and, when necessary, forming a salt. The amount of the compound represented by Formula (s) to be used is generally 1-10 equivalent weight with respect to the compound represented by Formula (m5), preferably 1.1-1.5 equivalent weight. The base to be used includes alkali metal hydroxides, such as NaOH and KOH, alkali metal salts, such as NaHCO₃ and K₂CO₃, and amines, such as triethylamine, diisopropylethylamine, and diisopropylamine. The amount of the base used is 1-10 equivalent weight with respect to the compound represented by Formula (m5), preferably 1.0-3.0 equivalent weight. The reaction temperature is 0° C. to a solvent reflux temperature, preferably 0° C. to a room temperature. A solvent to be used when it is necessary is not particularly limited, as long as it is inert. Examples of the solvent to be used include water, ethers such as dioxane and THF, dimethylformamide (DMF), N,N′-dimethylacetamide (DMA), N,N′-dimethylpropyleneurea (DMPU), hexamethylphosphoramide (HMPA), and mixed solvents thereof. The reaction time is generally a period of 30 minutes to 24 hours, but it depends on the reaction temperature and starting compound.

Further, a functional group can be introduced to R³ by carrying out protection, deprotection, functional group transformation in the process described above.

For use as pharmaceutical preparations, the compounds of the present invention may be supplemented with commonly used excipients, extenders, pH regulators, solubilizers and so on, and then formulated using standard techniques into tablets, granules, pills, capsules, powders, solutions, suspensions, injections, etc. The pharmaceutical preparations thus obtained can be administered as oral or parenteral formulations.

The compound of the present invention can be administered to an adult patient at a dose of 1-1000 mg per day in several separated doses. This dosage can be increased or reduced according to a type of a disease, an age, a weight, and a symptom of a patient, or the like.

Advantageous Effect of the Invention

As the Test Example described below shows, it is found that the compounds of the present invention are strong Edg-1 (SlPl) ligands.

BEST MODE FOR CARRYING OUT THE INVENTION

The following describes the present invention in more detail, with reference to Examples and the Test Example.

Example 1 3,4-Dichloro-N-{(R)-1-[4-ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]-triazol-3-yl]ethyl}benzenesulfonamide (Compound 12)

(R)-(1-Hydrazinocarbonyl-2-ethyl)carbamic acid t-butyl ester

(1) Hydrazine monohydrate (30 ml) was added to a solution of N-(t-butoxycarbonyl)-D-alanine methyl ester (41.8 g) in methanol (180 ml), and the mixture was stirred at room temperature for 12 hours. The reaction solution was concentrated, and the resulting crude crystal was washed with a mixed solvent of hexane and ethyl acetate (1:1, 300 ml) and then dried to give the titled compound as a colorless powder (32.6 g).

¹H NMR (300 MHz, DMDO-d₆) δ ppm: 1.14 (d, J=7.2 Hz, 3H), 1.37 (s, 9H), 3.30-4.09 (m, 3H), 6.70-6.90 (m, 1H), 8.96 (br s, 1H)

(R)-2-(N-(t-Butoxycarbonyl)amino)propionyl)-N-ethylhydrazinecarbothioamide

(2) Ethyl isothiocyanate (14.6 ml) was added to a solution of the compound (30.8 g) of Example 1-(1) in ethanol (152 ml), and the mixture was heated under reflux for two hours. Then, the mixture was cooled to room temperature, and the resulting crystal was filtered. The filtrate was concentrated, and the resulting residue was purified by silica-gel chromatography with a mixed solvent of ethyl acetate and chloroform to give the titled compound as a colorless amorphous substance (43.2 g).

¹H NMR (300 MHz, DMSO-d₆) δ ppm: 0.98-1.28 (m, 6H), 1.40 (s, 9H), 3.25-3.65 (m, 2H), 3.77-3.95 (m, 1H), 7.20-7.39 (m, 1H), 7.45-7.60 (m, 1H), 9.25 (s, 1H), 10.00 (s, 1H)

[(R)-1-(4-Ethyl-5-mercapto-4H-[1,2,4]triazol-3-yl)ethyl]-carbamic acid t-butyl ester

(3) One mol/l aqueous sodium hydroxide (218 ml) was added to a mixed solution of the compound (42.1 g) of Example 1-(2) in methanol (120 ml) and dioxane (240 ml), and the mixture was heated under reflux for three hours. The reaction solution was concentrated, and an aqueous hydrochloric acid (2N, 100 ml) was added. The mixture was extracted with a mixed solution of ethyl acetate, chloroform, and methanol (10:10:1, 500 ml). The organic layer was dried over anhydrous magnesium sulfate and evaporated under reduced pressure to remove the solvent. The resulting residue was washed with a mixed solvent of hexane and ethyl:acetate (1:1, 300 ml) and then dried to give the titled compound as a white solid (29.22 g).

¹H NMR (300 MHz, DMSO-d₆) δ ppm: 1.21 (t, J=7.1 Hz, 3H), 1.30-1.50 (m, 3H), 1.39 (s, 9H), 3.82-4.05 (m, 2H), 4.72-4.88 (m, 1H), 7.58 (d, J=8.5 Hz, 1H), 13.60 (br s, 1H)

[(R)-1-(4-Ethyl-5-methylsulfanyl-4H-[1,2,4]triazol-3-yl)ethyl]-carbamic acid t-butyl ester

(4) Diisopropylamine (17.4 ml) and MeI (7.7 ml) were added to a solution of the compound (28.12 g) of Example 1-(3) in THF (200 ml), and the mixture was stirred at room temperature for one hour. Thereafter, the resulting crystal was filtered. The filtrate was concentrated, and the resulting crude crystal was washed with a mixed solvent of hexane and ethyl acetate (3:1, 200 ml) and then dried to give the titled compound as a white powder (29.5 g).

¹H NMR (300 MHz, DMSO-d₆) δ ppm: 1.21 (t, J=7.0 Hz, 3H), 1.38 (s, 9H), 1.45 (t, J=7.0 Hz, 3H), 2.62 (s, 3H), 3.80-4.00 (m, 2H), 4.85-4.92 (m, 1H), 7.52 (d, J=8.5 Hz, 1H)

[(R)-1-(4-Ethyl-5-methanesulfonyl-4H-[1,2,4]triazol-3-yl)ethyl]-carbamic acid t-butyl ester

(5) With ice cooling, m-chloroperbenzoic acid (43.0 g) was added in four portions to a solution of the compound (21.0 g) of Example 1-(4) in chloroform (293 ml), and the mixture was stirred at room temperature for three hours and thereafter at 40° C. for one hour. Na₂S₂O₃ (12.9 g) and 1 mol/l aqueous sodium hydroxide (300 ml) were added to the reaction solution to separate the organic layer, and the organic layer was washed with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and evaporated under reduced pressure to remove the solvent. The resulting residue was purified by silica-gel flush column chromatography with a mixed solvent of hexane and ethyl acetate, and then recrystallized with hexane and chloroform to give the titled compound as a white powder (17.2 g).

¹H NMR (300 MHz, CDCl₃) δ ppm: 1.44 (s, 9H), 1.49 (t, J=7.1 Hz, 3H), 1.67 (t, J=6.8 Hz, 3H), 3.53 (s, 3H), 4.25-4.59 (m, 2H), 4.92-5.20 (m, 2H)

(R)-1-(4-Ethyl-5-methanesulfonyl-4H-[1,2,4]triazol-3-yl)ethylamine trifluoroacetic acid salts

(6) Trifluoroacetic acid (121 ml) was added to the compound (100.0 g) obtained in Example 1-(5), and the mixture was stirred at room temperature for two hours. The reaction solution was concentrated under reduced pressure to give the titled compound as a white powder (103.8 g).

¹H NMR (300 MHz, DMSO-d₆) δ ppm: 1.37 (t, J=7.2 Hz, 3H), 1.59 (d, J=6.8 Hz, 3H), 3.65 (s, 3H), 4.21-4.50 (m, 2H), 4.72-4.90 (m, 1H), 8.69 (br s, 3H)

(1R)-1-(4-Ethyl-5(4-fluorophenoxy)-4H-[1,2,4]-triazol-3-yl)ethylamine

(7) In a pressure-resistant screw cap test tube, N,N′-dimethylpropyleneurea (DMPU) (5 mL), 4-fluorophenol (1.01 g) and cesium carbonate (2.94 g) were added to the compound (1.00 g) obtained in Example 1-(6), and the mixture was stirred at 200° C. for one hour. The mixture was brought to room temperature, and saturated aqueous sodium chloride was added. The mixture was extracted with ethyl acetate (100 ml×5). The organic layer was dried over anhydrous sodium sulfate, filtered, and evaporated under reduced pressure to remove the solvent. The resulting crude product was purified by column chromatography (NH SiO₂, hexane/ethyl acetate=50/50 to 20/80, chloroform/methanol=30/1) to give the titled compound (brown oil compound, 0.586 g).

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.41 (t, J=7.3 Hz, 3H), 1.58 (d, J=6.4 Hz, 3H), 3.95-4.23 (m, 3H), 6.90-7.15 (m, 2H), 7.30-7.44 (m, 2H)

3,4-Dichloro-N-{(R)-1-[4-ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]-triazol-3-yl]ethyl}benzenesulfonamide (Compound 12)

(8) Triethylamine (0.93 mL, 6.64 mmol) and 3,4-dichlorobenzenesulfonyl chloride (0.45 mL, 2.88 mmol) were added at room temperature to a solution of the compound (0.554 g) of Example 1-(7) in THF (10 mL), and the mixture was stirred at room temperature for 2.5 hours. Then, ethyl acetate was added. The organic layer was washed with 1N aqueous hydrochloric acid and thereafter with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, filtered, and evaporated under reduced pressure to remove the solvent. The resulting crude product was purified by column chromatography (acidic OH SiO₂, hexane/ethyl acetate=50/50 to 10/90) and then recrystallized (ethyl acetate-hexane) to give 0.447 g of the titled compound (Compound 12) as a colorless powder.

Melting point: 190.0° C. to 192.0° C.

Example 2 N—[(1R)-1-(4-Ethyl-5(4-methylphenylamino)-4H-[1,2,4]triazol-3-yl)ethyl]3,4-dichlorobenzenesulfonamide (Compound 61)

(R)-1-(4-Ethyl-5-methanesulfonyl-4H-[1,2,4]triazol-3-yl)ethlamine

(1) To the compound (4.30 g) obtained in Example 1-(6), n-BuNH₂ (20 ml) was added, and the mixture was stirred at room temperature for one hour. The reaction solution was concentrated, and the resulting crude product was purified by NH silica-gel chromatography with a mixed solvent of methanol and chloroform (methanol/chloroform=10%) to give the titled compound as a colorless crystal (2.737 g).

¹H NMR (200 MHz, CDCl₃) δ ppm: 1.53 (t, J=7.3 Hz, 3H), 1.65 (d, J=6.8 Hz, 3H), 3.53 (s, 3H), 4.14-4.58 (m, 3H)

[5-((R)-1-Aminoethyl)-4-ethyl-4H-[1,2,4]triazol-3-yl]-4-methylphenylamine

(2) The compound (437 mg) obtained in Example 2-(1), DMPU (2.0 mL), 4-toluidine (257 mg), and NaH (240 mg, 60-72 wt % oily) were put in a pressure-resistant screw cap test tube. The mixture was stirred at 200° C. for 1.0 hour and then brought to room temperature, and 10% methanol/chloroform was added to the reaction solution. The reaction solution was filtered through NH silica gel and then concentrated, and the resulting brown oily substance was purified by column chromatography (NH SiO₂, ethyl acetate/hexane=50-99%, methanol/chloroform=5%) to give the titled compound (brown oil compound, 224 mg).

¹H NMR (200 MHz, CDCl₃) δ ppm: 1.31 (t, J=7.3 Hz, 3H), 1.60 (d, J=6.6 Hz, 3H), 2.28 (5, 3H), 3.60-4.30 (m, 3H), 6.96-7.02 (m, 4H)

N—[(1R)-1-(4-Ethyl-5(4-methylphenylamino)-4H-[1,2,4]triazol-3-yl)ethyl]3,4-dichlorobenzenesulfonamide (Compound 61)

A solution of 3,4-dichlorobenzenesulfonyl chloride (154 μl) in THF (2.0 ml) was added at room temperature to a solution of the compound (220 mg) of Example 2-(2) and triethylamine (0.249 ml) in THF (9.0 ml), and the mixture was stirred at room temperature for five hours. The insoluble matter was filtered off, and the resulting residue was concentrated. The resulting crude product was purified by OH silica-gel column chromatography (elution solvent: ethyl acetate/hexane=50-99%) and then recrystallized (ethyl acetate-hexane) to give 160 mg of the titled compound (Compound 61) as a pale yellow powder.

¹H NMR (600 MHz, DMSO-d₆) δ ppm 1.18 (t, J=7.1 Hz, 3H), 1.30 (d, J=6.9 Hz, 3H), 2.23 (s, 3H), 3.87-4.03 (m, 2H), 4.63-4.72 (m, 1H), 7.00-7.12 (m, 2H), 7.35-7.45 (m, 2H), 7.74 (dd, J=8.6, 1.9 Hz, 1H), 7.86 (d, J=8.6 Hz, 1H), 7.96 (d, J=1.9 Hz, 1H), 8.27 (s, 1H), 8.57-8.66 (m, 1H)

Melting point: 93.0° C. to 99.0° C.

Example 3 3,4-Dichloro-N—[(R)-1-(4-ethyl-5(4-methylbenzenesulfanyl)-4H-[1,2,4]triazol-3-yl)-ethyl]-benzenesulfonamide (Compound 55)

(R)-1-(4-Ethyl-5(4-methylphenylsulfanyl)-4H-[1,2,4]triazol-3-yl)-ethylamine

(1) The compound (5.00 g, 15.1 mmol) obtained in Example 1-(6), DMF (50 mL), 4-methylbenzenethiol (3.74 g, 30.1 mmol), and cesium carbonate (14.7 g, 45.1 mmol) were put in a pressure-resistant screw cap test tube. The mixture was stirred at 150° C. for four hours and thereafter brought back to room temperature, and a mixed solvent of chloroform/methanol (10/1) was added. The insoluble matter was filtered off. The filtrate was removed by evaporation under reduced pressure, and the resulting crude product was purified by column chromatography (NH SiO₂, hexane/ethyl acetate=50/50 to 10/90, chloroform/methanol 40/1) to give 3.01 g of the titled compound (colorless oily compound).

¹H NMR (600 MHz, CDCl₃) δ ppm 1.21 (t, J=7.3 Hz, 3H), 1.59 (d, J=6.4 Hz, 3H), 2.31 (s, 3H), 4.00-4.18 (m, 3H), 7.06-7.14 (m, 2H), 7.26-7.30 (m, 2H)

3,4-Dichloro-N—[(R)-1-(4-ethyl-5(4-methylbenzenesulfanyl)-4H-[1,2,4]triazol-3-yl)-ethyl]-benzenesulfonamide (Compound 55)

(2) Starting from the compound obtained in Example 3-(1), the same procedure as used in Example 1-(8) was repeated to give the titled compound.

¹H NMR (600 MHz, DMSO-d₆) δ ppm 1.08 (t, J=7.3 Hz, 3H), 1.32 (d, J=6.9 Hz, 3H), 2.28 (s, 3H), 3.90-4.11 (m, 2H), 4.78 (q, J=6.9 Hz, 1H), 7.17-7.23 (m, 4H), 7.67-7.74 (m, 1H), 7.81-7.88 (m, 1H), 7.92-7.94 (m, 1H), 8.77 (s, 1H)

Yield: 46%, Melting point: 141.0° C. to 143.0° C.

Example 4 3,4-Dichloro-N—[(R)-1-[4-ethyl-5(4-methylbenzenesulfonyl)-4H-[1,2,4]triazol-3-yl]-ethyl]-benzenesulfonamide (Compound 57)

To a solution of the compound (0.300 g) of Example 3-(2) in chloroform (6 mL), m-chloroperbenzoic acid (0.329 g) was added, and the mixture was stirred at room temperature for one hour. Then, a further portion of m-chloroperbenzoic acid (0.329 g) was added, and the mixture was stirred at room temperature for 15 hours. Thereafter, a further portion of m-chloroperbenzoic acid (0.329 g) was added, and the mixture was stirred at room temperature for two hours. Then, ethyl acetate was added, and the organic layer was washed with 5% aqueous Na₂S₂O₃ solution and thereafter with saturated aqueous sodium bicarbonate, dried over anhydrous magnesium sulfate, filtered, and evaporated under reduced pressure to remove the solvent. The resulting residue was purified by column chromatography (acidic OH SiO₂, hexane/ethyl acetate=70/30 to 40/60) and then recrystallized (ethyl acetate-hexane) to give 0.196 g of the titled compound (Compound 57) (colorless powdered compound).

¹H NMR (600 MHz, DMSO-d₆) δ ppm 1.25-1.35 (m, 6H), 2.45 (s, 3H), 4.23-4.40 (m, 2H), 4.78-4.86 (m, 1H), 7.52-7.56 (m, 2H), 7.62-7.67 (m, 1H), 7.78-7.82 (m, 1H), 7.86-7.94 (m, 3H)

Melting point: 164.0° C. to 165.0° C.

Example 5 3,4-Dichloro-N—[(R)-1-[4-ethyl-5(4-methylbenzyl)-4H-[1,2,4]triazol-3-yl]-ethyl]-benzenesulfonamide (Compound 56)

((R)-1-Ethylcarbamoyl-ethyl)-carbamic acid t-butyl ester

(1) EtNH₂ (10 ml, 70% aqueous solution) was added to N-(t-butoxycarbonyl)-D-alanine methyl ester (4.76 g) in methanol (20 ml), and the mixture was stirred at room temperature for 19 hours. The reaction solution was concentrated, and the resulting crude product was purified by column chromatography (acidic OH SiO₂, chloroform/ethyl acetate=10-50%) to give 3.96 g of the titled compound (colorless amorphous substance).

¹H NMR (200 MHz, CDCl₃) δ ppm: 1.12 (t, J=7.2 Hz, 3H), 1.35 (d, J=7.2 Hz, 3H), 1.46 (s, 9H), 3.18-3.37 (m, 2H), 4.00-4.20 (m, 1H), 4.90-5.10 (m, 1H), 6.04-6.22 (m, 1H)

((R)-1-Ethylthiocarbamoyl-ethyl)-carbamic acid t-butyl ester

(2) A Lawesson's reagent (8.89 g) was added to a solution of the compound (3.96 g) of Example 5-(1) in THF (92 ml), and the mixture was stirred at room temperature for one hour and thereafter at 50° C. for 30 minutes. The reaction solution was cooled to room temperature, and the insoluble matter was filtered off. Then, the resulting residue was concentrated. The resulting crude product was purified by column chromatography (acidic OH SiO₂, chloroform/ethyl acetate=10-50%) and thereafter by NH silica-gel column chromatography (ethyl acetate/hexane=50%) to give the titled compound (3.75 g) as a colorless powder.

¹H NMR (200 MHz, CDCl₃) δ ppm: 1.26 (t, J=7.2 Hz, 3H), 1.38-1.52 (m, 3H), 1.45 (s, 9H), 3.60-3.77 (m, 2H), 4.36-4.53 (m, 1H), 5.10-5.32 (m, 1H), 7.99-8.24 (m, 1H)

[(R)-1-[4-Ethyl-5(4-methylbenzyl)-4H-[1,2,4]triazol-3-yl]-ethyl]-carbamic acid t-butyl ester

(3) Hg (OAc)₂ (2.43 g) was added to a solution of the compound (1.61 g) obtained in Example 5-(2) and 4-methylphenylacetic acid hydrazide (1.25 g) in CH₃CN (30 mL), and the mixture was stirred at room temperature for 42 hours. Ethyl acetate was added to the reaction solution, and the insoluble matter was filtered off through celite. The filtrate was washed with 1N aqueous KHSO₄ solution and thereafter with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, filtered, and evaporated under reduced pressure to remove the solvent. The resulting crude product was purified by column chromatography (acidic OH SiO₂, ethyl acetate/hexane=50-100%, methanol/chloroform=1/1) (neutral OH SiO₂, methanol/chloroform=1/10) to give 0.530 g of the titled compound (colorless amorphous substance).

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.04 (t, J=7.3 Hz, 3H), 1.41 (s, 9H), 1.61 (d, J=6.9 Hz, 3H), 2.30 (s, 3H), 3.73-3.90 (m, 2H), 4.06-4.20 (m, 2H), 4.85-4.94 (m, 1H), 5.11-5.17 (m, 1H), 7.09 (s, 4H)

(R)-1-[4-Ethyl-5-(4-methylbenzyl)-4H-[1,2,4]triazol-3-yl]-ethylamine

(4) Trifluoroacetic acid (5 mL) was added to a solution of the compound (0.496 g) of Example 5-(3) in chloroform (5 mL), and the mixture was stirred at room temperature for 18 hours. Aqueous sodium hydroxide (1.0N) was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, dried over anhydrous sodium sulfate, filtered, and evaporated under reduced pressure to remove the solvent, whereby 0.148 g of the titled compound was obtained as a colorless oily compound.

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.09 (t, J=7.3 Hz, 3H), 1.57 (d, J=6.9 Hz, 3H), 2.30 (s, 3H), 3.74-3.94 (m, 2H), 4.01-4.20 (m, 3H), 7.10 (s, 4H)

3,4-Dichloro-N—[(R)-1-[4-ethyl-5(4-methylbenzyl)-4H-[1,2,4]triazol-3-yl]-ethyl]-benzenesulfonamide (Compound 56)

(5) Triethylamine (0.25 mL) and 3,4-dichlorobenzenesulfonyl chloride (0.707 mL) were added to a solution of the compound (0.144 g) of Example 5-(4) in THF (3 mL), and the mixture was stirred at room temperature for 3.5 hours. Then, 2N aqueous hydrochloric acid was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, filtered, and evaporated under reduced pressure to remove the solvent. The resulting residue was purified by column chromatography (acidic OH SiO₂, chloroform/methanol=50/1 to 10/1) and then recrystallized (ethyl acetate-hexane) to give 0.100 g of the titled compound (Compound 56) as a colorless powdered compound.

¹H NMR (600 MHz, DMSO-D6) δ ppm: 0.91 (t, J=7.1 Hz, 3H), 1.26 (d, J=6.9 Hz, 3H), 2.23 (s, 3H), 3.77-3.92 (m, 2H), 4.00 (s, 2H), 4.60-4.70 (m, 1H), 7.03-7.12 (m, 4H), 7.64-7.68 (m, 1H), 7.79-7.82 (m, 1H), 7.89-7.91 (m, 1H), 8.64 (s, 1H)

Melting point: 189.0° C. to 191.0° C.

Example 6 3,4-Dichloro-N—[(R)-1-[4-ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]triazol-3-yl]-ethyl]-N-methyl-benzenesulfonamide (Compound 115)

K₂CO₃ (78 mg) and MeI (0.022 ml) were added at room temperature to a solution of Compound 12 (150 mg) of Example 1 in dimethylformamide (2.0 ml), and the mixture was stirred at room temperature for three hours. Water was added to the reaction solution, and the mixture was extracted with a mixed solution of methanol/chloroform (methanol/chloroform=1/4). The resulting organic layer was washed with saturated aqueous sodium chloride, dried (MgSO₄), filtered, and evaporated under reduced pressure to remove the solvent. After eluting the residue with a mixed solvent of ethyl acetate and hexane, the resulting elute was purified by column chromatography (acidic OH SiO₂, ethyl acetate/hexane=50-99%, methanol/chloroform=0-10%) and then recrystallized (ethyl acetate-hexane) to give 111 mg of the titled compound as a colorless powdered compound.

Melting point: 125.5° C. to 126.5° C.

Example 7 3,4-Dichloro-N—((R)-1-[5-[3-(1,4-dioxa-8-aza-spiro[4.5]decan-8-yl)-phenoxy]-4-ethyl-4H-[1,2,4]triazol-3-yl]-ethyl)-benzenesulfonamide (Compound 87)

3-(1,4-Dioxa-8-aza-spiro[4.5]decen-8-yl)-phenol

(1) In a pressure-resistant screw cap test tube, 3-bromophenol (1.50 g), 1,4-dioxa-8-azaspiro[4,5]decan (1.49 g), Pd₂(dba)₃ (0.079 g), (2′-dicyclohexylphosphanyl-biphenyl-2-yl)-dimethylamine (0.082 g), and LiN(TMS)₂ (20% in THF, 18 mL) were put, and the mixture was stirred at 65° C. for 7.5 hours. Ethyl acetate was added, and the organic layer was washed with 1N aqueous hydrochloric acid and thereafter with saturated aqueous sodium bicarbonate, dried over anhydrous sodium sulfate, filtered, and evaporated under reduced pressure to remove the solvent. The resulting residue was purified by column chromatography (acidic OH SiO₂, hexane/ethyl acetate=70/30 to 60/40) to give 1.96 g of the titled compound (brown oil).

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.79-1.83 (m, 4H), 3.27-3.35 (m, 4H), 3.98 (s, 4H), 4.86 (s, 1H), 6.28 (dd, J=8.0, 2.5 Hz, 1H), 6.41 (t, J=2.3 Hz, 1H), 6.51 (dd, J=8.5, 2.5 Hz, 1H), 7.08 (t, J=8.3 Hz, 1H)

(R)-1-[5-[3-(1,4-Dioxa-8-aza-spiro[4.5]decan-8-yl)-phenoxy]-4-ethyl-4H-[1,2,4]triazol-3-yl]-ethylamine

(2) Starting from the compound obtained in Example 7-(1) in place of 4-fluorophenol, the same procedure as used in Example 1-(7) was repeated to give the titled compound (brown oily substance, yield 58%).

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.38 (t, J=7.3 Hz, 3H), 1.57 (d, J=6.9 Hz, 3H), 1.77-1.83 (m, 4H), 3.27-3.36 (m, 4H), 3.95-4.06 (m, 6H), 4.14 (g, J=6.9 Hz, 1H), 6.70-6.75 (m, 2H), 6.97 (t, J=2.3 Hz, 1H), 7.20 (t, J=8.3 Hz, 1H)

3,4-Dichloro-N—((R)-1-[5-[3-(1,4-dioxa-8-aza-spiro[4.5]decan-8-yl)-phenoxy]-4-ethyl-4H-[1,2,4] triazol-3-yl]-ethyl)-benzenesulfonamide (Compound 87)

(3) Starting from the compound obtained in Example 7-(2), the same procedure as used in Example 1-(8) was repeated to give the titled compound (colorless powder, yield 64%).

Melting point: 174.0° C. to 179.0° C.

Example 8 3,4-Dichloro-N—((R)-1-[4-ethyl-5-[3-(4-oxo-piperidin-1-yl)-phenoxy]-4H-[1,2,4]triazol-3-yl]-ethyl)-benzenesulfonamide (Compound 88)

To a solution of the compound (0.981 g) of Example 7 in THF (10 mL), 2N aqueous hydrochloric acid (8.4 mL) was added, and the mixture was stirred at room temperature for one hour. Concentrated hydrochloric acid (2 mL) was added, and the mixture was stirred at 50° C. for six hours. Saturated aqueous sodium bicarbonate was added for neutralization, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, filtered, and then evaporated under reduced pressure to remove the solvent. The resulting residue was purified by column chromatography (acidic OH SiO₂, ethyl acetate) and then recrystallized (chloroform-hexane) to give the titled compound (0.572 g, colorless powder).

Melting point: 188.5° C. to 190.5° C.

Example 9 3,4-Dichloro-N—((R)-1-[4-ethyl-5-[3-(4-hydroxy-piperidin-1-yl)-phenoxy]-4H-[1,2,4]triazol-3-yl]-ethyl)-benzenesulfonamide (Compound 93)

NaBH₄ (0.021 g) was added at 0° C. to a solution of the compound (0.150 g) of Example 8 in methanol (3.0 ml), and the mixture was stirred at room temperature for 16 hours. Water was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, dried over MgSO₄, filtered, and evaporated under reduced pressure to remove the solvent. The resulting crude product was purified by column chromatography (neutral OH SiO₂, methanol/chloroform=1/50 to 1/10) and then recrystallized (ethyl acetate-hexane) to give 0.113 g of the titled compound (Compound 93) as a colorless powder.

Melting point: 167.5° C. to 169.5° C.

Example 10 N—[(R)-1-[5-(3-Amino-phenoxy)-4-ethyl-4H-[1,2,4]triazol-3-yl]-ethyl]-3,4-dichlorobenzenesulfonamide (Compound 82)

3-[5-((R)-1-Amino-ethyl)-4-ethyl-4H-[1,2,4]triazol-3-yloxy]-phenyl amine

(1) Starting from 3-aminophenol in place of 4-fluorophenol, the same procedure as used in Example 1-(7) was repeated to give the titled compound (brown oily substance, yield 99%).

¹H NMR (600 MHz, CDCl₃) δ ppm; 1.37 (t, J=7.1 Hz, 3H), 1.58 (d, J=6.9 Hz, 3H), 3.96-4.05 (m, 2H), 4.15 (q, J=6.7 Hz, 1H), 6.45-6.50 (m, 1H), 6.62-6.67 (m, 1H), 6.71-6.75 (m, 1H), 7.11 (t, J=8.0 Hz, 1H)

N—[(R)-1-[5-(3-Amino-phenoxy)-4-ethyl-4H-[1,2,4]triazol-3-yl]-ethyl]-3,4-dichlorobenzenesulfonamide (Compound 82)

(2) Triethylamine (4.16 ml) and 3,4-dichlorobenzenesulfonyl chloride (3.73 g) were added to a solution of the compound (3.69 g) of Example 10-(1) in THF (15 ml), and the mixture was stirred at room temperature overnight. The reaction solution was concentrated, and the resulting crude product was purified by column chromatography (NH SiO₂, methanol/chloroform) and recrystallized (ethyl acetate/hexane) to give 3.60 g of the titled compound (Compound 82) (colorless powdered compound).

Melting point: 142.0° C. to 145.0° C.

Example 11 3,4-Dichloro-N—[(R)-1-[4-ethyl-5-(3-pyrrol-1-phenoxy)-4H-[1,2,4]triazol-3-yl]-ethyl]-benzenesulfonamide (Compound 86)

To a solution of the compound (700 mg) of Example 10 in AcOH (4.6 ml), 2,5-dimethoxy-tetrahydrofuran (375 μl) was added, and the mixture was stirred at 130° C. for 30 minutes. The reaction solution was cooled to room temperature and concentrated under reduced pressure. Thereafter, water was added, and the mixture was extracted with methanol/chloroform (1/4). Then, the organic layer was washed with saturated aqueous sodium chloride, dried over MgSO₄, filtered, and evaporated under reduced pressure to remove the solvent. The resulting residue was purified by column chromatography (acidic OH SiO₂, ethyl acetate/hexane=33-100%, methanol/chloroform=5%) and then recrystallized (ethyl acetate-hexane) to give the titled compound (Compound 86) (173 mg, colorless powdered compound).

Melting point: 176.0° C. to 177.0° C.

Example 12 3,4-Dichloro-N—[(R)-1-[4-ethyl-5-(3-formylamino-phenoxy)-4H-[1,2,4]triazol-3-yl]-ethyl]-benzenesulfonamide (Compound 90)

A mixture of the compound (300 mg) obtained in Example 10-(2) and ethyl formate (1.1 ml) was stirred at 105° C. for 24 hours. The reaction solution was cooled to room temperature and concentrated under reduced pressure. The resulting crude product was purified by column chromatography (acidic OH SiO₂, ethyl acetate/hexane=50-100%, methanol/chloroform=5%) and then recrystallized (ethyl acetate-hexane) to give the titled compound (Compound 90) (81 mg, colorless powder).

Melting point: 168.0° C. to 170.0° C.

Example 13 3,4-Dichloro-N—[(R)-1-[4-ethyl-5-(3-ureido-phenoxy)-4H-[1,2,4]triazol-3-yl]-ethyl]-benzenesulfonamide (Compound 91)

A mixture of the compound (300 mg) obtained in Example 10-(2), potassium cyanate (65 mg), AcOH (1.0 ml), and water (0.5 ml) was stirred at room temperature for one hour. Water was added, and the mixture was extracted with methanol/chloroform (1/4). The organic layer was dried over MgSC)₄, filtered, and evaporated to remove the solvent. The resulting crude product was purified by column chromatography (acidic OH SiO₂, ethyl acetate/hexane=50-99%, methanol/chloroform=0-3%) and then recrystallized (ethyl acetate-hexane) to give the titled compound (Compound 91) (273 mg, colorless powder).

Melting point: 137.0° C. to 138.0° C.

Example 14 3,4-Dichloro-N—((R)-1-[5-[3-(3,3-dimethylureido)-phenoxy]-4-ethyl-4H-[1,2,4]triazol-3-yl]-ethyl)-benzenesulfonamide (Compound 97)

Dimethylcarbamyl chloride (146 μl) was added to a solution of the compound (300 mg) of Example 10-(2) and triethylamine (368 μl) in chloroform (1.1 ml), and the mixture was stirred at room temperature for three hours. The reaction solution was concentrated, and the resulting crude product was purified by column chromatography (neutral OH SiO₂, ethyl acetate/hexane=50-99%, methanol/chloroform=0-3%) and then recrystallized (ethyl acetate-hexane) to give the titled compound (Compound 97) (93 mg, colorless powder).

Melting point: 158.0° C. to 159.0° C.

Example 15 3,4-Dichloro-N—((R)-1-[4-ethyl-5-[3-(3-ethylureido)-phenoxy]-4H-[1,2,4]triazol-3-yl]-ethyl)-benzenesulfonamide (Compound 92)

Ethyl isocyanate (63 μl) was added to a solution of the compound (300 mg) of Example 10-(2) in chloroform (1.1 ml), and the mixture was stirred at room temperature for one hour. The reaction solution was concentrated, and the resulting crude product was purified by column chromatography (neutral OH SiO₂, ethyl acetate/hexane=50-99%, methanol/chloroform=0-3%) and then recrystallized (ethyl acetate-hexane) to give the titled compound (Compound 92) (228 mg, colorless powder). Melting point; 118.0° C. to 120.0° C.

Example 16 3,4-Dichloro-N—[(R)-1-[4-ethyl-5-(3-methanesulfonylamino-phenoxy)-4H-[1,2,4]triazol-3-yl]-ethyl]-benzenesulfonamide (Compound 102)

Methanesulfonyl chloride (114 mg) was added to a solution of the compound (300 mg) of Example 10-(2) in pyridine (1.32 ml), and the mixture was stirred at room temperature for three hours. Hydrochloric acid (1.0 N) was added, and the mixture was extracted with methanol/chloroform (1/4). The organic layer was dried over Na₂SO₄, filtered, and concentrated, and the resulting crude product was purified by column chromatography (neutral OH SiO₂, ethyl acetate/hexane=50-99%, methanol/chloroform=0-5%) and then recrystallized (ethyl acetate-hexane) to give the titled compound (Compound 102) (281 mg, colorless powder).

Melting point: 117.0° C. to 118.0° C.

Example 17 3,4-Dichloro-N—[(R)-1-[4-ethyl-5-(3-hydroxyphenoxy)-4H-[1,2,4]triazol-3-yl]-ethyl]-benzenesulfonamide (Compound 114)

(R)-1-[5-(3-Benzyloxy-phenoxy)-4-ethyl-4H-[1,2,4]triazol-3-yl]-ethylamine

(1) Starting from 3-benzyloxyphenol in place of 4-fluorophenol, the same procedure as used in Example 1-(7) was repeated to give the titled compound (brown oily substance, yield 84%).

¹H NMR (600 MHz, CDCl₃), 6 ppm: 1.39 (t, J=7.3 Hz, 3H), 1.60 (d, J=6.4 Hz, 3H), 3.96-4.09 (m, 2H), 4.17 (q, J=6.9 Hz, 1H), 5.06 (s, 2H), 6.79-6.84 (m, 1H), 6.91-6.96 (m, 1H), 7.04-7.08 (m, 1H), 7.22-7.46 (m, 6H)

3-[5-((R)-1-Aminoethyl)-4-ethyl-4H-[1,2,4]triazol-3-yloxy]-phenol

(2) A suspension of the compound (1.5 g) of Example 17-(1) and Pd(OH)₂/C (150 mg, Pd 20 wtt) in methanol (4.0 ml) was stirred at room temperature for a day under a hydrogen atmosphere (approximately 1 atmospheric pressure). The reaction mixture was filtered through celite and evaporated to remove the solvent. The resulting crude product was purified by column chromatography (NH SiO₂, methanol/chloroform=0-25%) to give the titled compound (gray amorphous substance, 323 mg).

¹H NMR (600 MHz, DMSO-d₆), 6 ppm: 1.23 (t, J=7.3 Hz, 3H), 1.54 (d, J=6.9 Hz, 3H), 3.82-4.09 (m, 2H), 4.60 (q, J=6.0 Hz, 1H), 6.61-6.69 (m, 2H), 6.70-6.77 (m, 1H), 7.14-7.21 (m, 1H), 8.28-9.11 (m, 2H), 9.43-10.55 (m, 1H)

3,4-Dichloro-N—[(R)-1-[4-ethyl-5-(3-hydroxyphenoxy)-4H-[1,2,4]triazol-3-yl]-ethyl]-benzenesulfonamide (Compound 114)

(3) Triethylamine (0.225 ml) and 3,4-dichlorobenzenesulfonyl chloride (198 mg) were added at room temperature to a solution of the compound (200 mg) of Example 17-(2) in THF (2.0 ml), and the mixture was stirred at room temperature for 12 hours. The mixture was evaporated to remove the solvent, and KOH (104 mg), ethanol (4.0 ml), and water (4.0 ml) were added to the resulting crude product. The mixture was stirred at 120° C. for 40 minutes, and then cooled to room temperature. HCl (1.0 N) was added, and the mixture was extracted with a mixed solution of methanol/chloroform (methanol/chloroform=1/4), dried (MgSO₄), filtered, and evaporated under reduced pressure to remove the solvent. The resulting crude product was purified by column chromatography (acidic OH SiO₂, ethyl acetate/hexane=30-70%) and then recrystallized (methanol/chloroform/hexane) to give 37 mg of the titled compound (Compound 114) as a colorless powder.

Melting point: 185.0° C. to 186.0° C.

Example 18 3-[5-[(R)-1-(3,4-Dichlorobenzenesulfonylamino)-ethyl]-4-ethyl-4H-[1,2,4]triazol-3-yloxy]benzoic acid t-butyl ester (Compound 118)

3-[5-((R)-1-Aminoethyl)-4-ethyl-4H-[1,2,4]triazol-3-yloxy]-benzoic acid t-butyl ester

(1) Starting from 3-hydroxybenzoic acid t-butyl ester in place of 4-fluorophenol, the same procedure as used in Example 1-(7) was repeated to give the titled compound (colorless and oily, yield 24%).

¹H NMR (600 MHz, CDCl₃), b ppm: 1.43 (t, J=7.1 Hz, 3H), 1.58-1.62 (m, 12H), 4.01-4.13 (m, 2H), 4.18 (q, J=6.6 Hz, 1H), 7.42-7.46 (m, 1H), 7.61-7.65 (m, 1H), 7.82-7.85 (m, 1H), 7.87-7.91 (m, 1H)

3-[5-[(R)-1-(3,4-Dichlorobenzenesulfonyamino)-ethyl]-4-ethyl-4H-[1,2,4]triazol-3-yloxy]benzoic acid t-butyl ester (Compound 118)

(2) Starting from the compound obtained in Example 18-(1), the same procedure as used in Example 1-(8) was repeated to give the titled compound (colorless powder, yield 68%).

¹H NMR (600 MHz, CDCl₃), 6 ppm: 1.38 (t, J=7.3 Hz, 3H), 1.51 (d, J=6.9 Hz, 3H), 1.58 (s, 9H), 3.93-4.01 (m, 2H), 4.29-4.35 (m, 1H), 7.43-7.48 (m, 1H), 7.50-7.60 (m, 3H), 7.64-7.69 (m, 1H), 7.81-7.89 (m, 2H), 7.90-7.94 (m, 1H)

Example 19 3-[5-[(R)-1-(3,4-Dichlorobenzenesulfonylamino)-ethyl]-4-ethyl-4H-[1,2,4]triazol-3-yloxy]-benzoic acid (Compound 113)

Trifluoroacetic acid (0.12 ml) was added to a solution of the compound (260 mg) of Example 18 in chloroform (12.0 ml), and the mixture was stirred at room temperature for five days. The mixture was evaporated to remove the solvent, and the resulting crude product was purified by column chromatography (neutral OH SiO₂, ethyl acetate/hexane=50-99%, methanol/chloroform=0-20%) and then recystallzied (methanol/chloroform/hexane) to give the titled compound (Compound 113) (101 mg, colorless powder).

Melting point: 183.0° C. to 185.0° C.

Example 20 N—[(R)-1-[4-Ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]triazol-3-yl]-ethyl]-4-methoxybenzenesulfonamide (Compound 175)

To a solution of the compound (12.5 mg) of Example 1-(7) in THF (0.3 ml), triethylamine (25 μl) was added, and then a solution of 4-methoxybenzenesulfonylchloride (15.5 mg) in THF (0.3 ml) was added. The mixture was stirred at room temperature for two hours. PSA (product name: VARIAN Inc. polymer supported amine, 1.4 meq/g) (75 μl) was added to the reaction mixture, and the mixture was stirred at room temperature for 12 hours. The insoluble matter was filtered off, and the resulting residue was evaporated to remove the solvent. The resulting crude product was purified by silica-gel column chromatography (acidic OH SiO₂, ethyl acetate/hexane=50-100%, methanol/chloroform=10%) to give 10.7 mg of the titled compound (Compound 175) as a colorless powder.

APCI MS (M−H)−: 419, APCI MS (M+H)+: 421

Example 21 3,4-Dichloro-N—((R)-1-[4-ethyl-5-[3-(4-methyl-piperazin-1-yl)-phenoxy]-4H-[1,2,4]triazol-3-yl]-ethyl)-benzenesulfonamide (Compound 45)

(1) The following compound was obtained by the same procedure as used in Example 1-(7) (the procedure will be specifically described below).

(R)-1-[4-Ethyl-5-[3-(4-methyl-piperazin-1-yl)-phenoxy]-4H-[1,2,4]triazol-3-yl]-ethylamine

In a pressure-resistant screw cap test tube, N,N′-dimethylpropyleneurea (DMPU) (4.0 ml), 3-(4-methyl-piperazin-1-yl)-phenol (500 mg), and cesium carbonate (2.21 g) were added to the compound (750 mg) obtained in Example 1-(6), and the mixture was stirred at 160° C. for three hours. The mixture was brought to room temperature, and saturated aqueous sodium chloride was added. The mixture was extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate, filtered, and evaporated under reduced pressure to remove the solvent. The resulting crude product was purified by column chromatography (NH SiO₂, chloroform/methanol=50/1-30/1) to give the titled compound (yellow oily compound, 427 mg).

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.40 (t, J=7.3 Hz, 3H), 1.59 (d, J=6.9 Hz, 3H), 2.35 (s, 3H), 2.52-2.61 (m, 4H), 3.22-3.27 (m, 4H), 3.97-4.08 (m, 2H), 4.15 (q, J=6.9 Hz, 1H), 6.71-6.80 (m, 2H), 6.99-7.03 (m, 1H), 7.20-7.25 (m, 1H)

(2) The following compound was obtained by the same procedure as used in Example 1-(8) (the procedure will be specifically described below).

3,4-Dichloro-N—((R)-1-[4-ethyl-5-[3-(4-methyl-piperazin-1-yl)-phenoxy]-4H-[1,2,4]triazol-3-yl]-ethyl)-benzenesulfonamide (Compound 45)

Triethylamine (0.41 mL) and 3,4-dichlorobenzenesulfonyl chloride (0.232 mL) were added at room temperature to a solution of the compound (427 mg) of Example 21-(1) in THF (8.0 mL), and the mixture was stirred at room temperature overnight. The reaction mixture was concentrated, and the resulting residue was purified by column chromatography (NH SiO₂, chloroform/methanol=50/1-30/1) and then recrystallized (ethyl acetate-hexane) to give 280 mg of the titled compound (Compound 45) as a colorless powder.

Melting point: 194.0° C. to 196.0° C.

Example 22 3,4-Dichloro-N—[(R)-1-[4-ethyl-5-(1H-indol-6-yloxy)-4H-1,2,4]triazol-3-yl]-ethyl]-benzenesulfonamide (Compound 64)

(1) The following compound was obtained by the same procedure as used in Example 1-(7) (the procedure will be specifically described below).

(R)-1-[4-Ethyl-5-(1H-indol-6-yloxy)-4H-[1,2,4]triazol-3-yl]-ethylamine

In a pressure-resistant screw cap test tube, N,N′-dimethylpropyleneurea (DMPU) (5.0 ml), 1H-indol-6-ol (601 mg), and cesium carbonate (2.94 g) were added to the compound (1.00 g) obtained in Example 1-(6), and the mixture was stirred at 200° C. for one hour and then brought to room temperature. Saturated aqueous sodium chloride was added, and the mixture was extracted with ethyl acetate. The organic layer was dried (MgSO₄), filtered, and evaporated under reduced pressure to remove the solvent. Then, the resulting crude product was purified by column chromatography (NH SiO₂, chloroform/methanol=50/1-30/1) to give the titled compound (yellow oily compound, 750 mg).

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.42 (t, J=7.1 Hz, 3H), 1.58 (d, J=6.4 Hz, 3H), 3.98-4.10 (m, 2H), 4.15 (q, J=6.7 Hz, 1H), 6.30-6.39 (m, 1H), 6.87-7.00 (m, 2H), 7.39-7.52 (m, 2H), 9.55 (s, 1H)

(2) The following compound was obtained by the same procedure as used in Example 1-(8) (the procedure will be specifically described below).

3,4-Dichloro-N—[(R)-1-[4-ethyl-5-(1H-indol-6-yloxy)-4H-1,2,4]triazol-3-yl]-ethyl]-benzenesulfonamide (Compound 64)

Triethylamine (0.77 mL) and 3,4-dichlorobenzenesulfonyl chloride (1.02 g) were added at room temperature to the compound (748 mg) of Example 22-(1) in THF (10.0 mL), and the mixture was stirred at room temperature overnight. The reaction mixture was concentrated, and the resulting residue was purified by column chromatography (NH SiO₂, chloroform/methanol=30/1) and then recrystallized (CHCl₃/MeOH/hexane) to give 815 mg of the titled compound (Compound 64) as a colorless powder.

Melting point: 223.0° C. to 224.0° C.

Example 23 N—[(S)-2-Benzyloxy-1-[4-ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]triazol-3-yl]-ethyl]-3,4-dichlorobenzenesulfonamide (Compound 695)

Starting from (R)-2-amino-3-benzyloxy-propionic acid methyl ester in place of N-(t-butoxycarbonyl)-D-alanine methyl ester used in Example 1-(1), the same procedure as used in Example 1 was repeated to give the titled compound (Compound 695) as a colorless powder.

¹H NMR (200 MHz, CDCl₃) δ ppm: 1.31 (t, J=7.3 Hz, 3H), 3.65-4.03 (m, 4H), 4.35 (s, 2H), 4.67 (q, J=7.9 Hz, 1H), 7.03-7.39 (m, 10H), 7.68 (dd, J=8.8, 2.2 Hz, 1H), 7.93 (d, J=2.2 Hz, 1H)

Example 24 3,4-Dichloro-N—[(S)-1-[4-ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]triazol-3-yl]-2-hydroxyethyl]-benzenesulfonamide (Compound 696)

AlCl₃ (49 mg) and PhNMe₂ (148 mg) were added to a solution of the compound (69 mg) of Example 23 in CH₂Cl₂ (2.0 ml), and the mixture was stirred at room temperature for one hour. Then, AcOEt was added, and the mixture was washed with 1N hydrochloric acid and thereafter with saturated aqueous sodium chloride. The organic layer was dried (Na₂SO₄), filtered, and evaporated under reduced pressure to remove the solvent. Then, the resulting crude product was purified by column chromatography (OH SiO₂, AcOEt/hexane=2/1) to give 54 mg of the titled compound (Compound 696) as a colorless powder.

¹H NMR (200 MHz, CDCl₃) δ ppm: 1.41 (t, J=7.5 Hz, 3H), 3.62 (dd, J=4.8, 11.8 Hz, 1H), 3.88 (dd, J=4.8, 11.8 Hz, 1H), 4.05 (q, J=7.5 Hz, 2H), 4.51-4.60 (m, 1H), 7.04-7.13 (m, 2H), 7.23-7.31 (m, 3H), 7.53 (d, J=8.8 Hz, 1H), 7.70 (dd, J=8.8, 2.2 Hz, 1H), 7.93 (d, J=2.2 Hz, 1H)

Example 25 3,4-Dichloro-N—[(S)-1-[4-ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]triazol-3-yl]-2-fluoroethyl)]-benzenesulfonamide (Compound 689)

A solution of diethylaminosulfurtrifluoride (DAST) (16 mg) in CH₂Cl₂ (1.0 ml) was added at 0° C. to a solution of the compound (45 mg) of Example 24 in CH₂Cl₂ (2.0 ml), and the mixture was stirred at the same temperature for one hour. The reaction solution was added to saturated aqueous sodium bicarbonate, and the mixture was extracted with AcOEt. The organic layer was dried (Na₂SO₄) and filtered evaporated under reduced pressure to remove the solvent. The resulting crude product was purified by column chromatography (OH SiO₂, AcOEt/hexane=30-50%) to give 6 mg of the titled compound (Compound 696) as a pale yellow powder.

¹H NMR (200 MHz, CDCl₃) δ ppm 1.39 (t, J=7.5 Hz, 3H), 4.01 (q, J=7.5 Hz, 2H), 4.45-4.86 (m, 3H), 6.98 (br, 1H), 7.05-7.36 (m, 4H), 7.48 (d, J=8.5 Hz, 1H), 7.69 (dd, J=8.5, 2.2 Hz, 1H), 7.93 (d, J=2.2 Hz, 1H)

Example 26 3,4-Dichloro-N-[1-[4-ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]triazol-3-yl]-2,2,2-trifluoroethyl]-benzenesulfonamide (Compound 687)

4-Ethyl-5-mercapto-4H-[1,2,4]triazol-3-carboxylic acid ethyl ester

(1) To a solution of diethyl formate (48.64 g) in MeOH (100 ml), a solution of hydrazine monohydrate (16.33 g) in MeOH (100 ml) was added dropwise at −5° C. over 1.5 hours, and ethylisothiocyanate (29.00 g) was added at the same temperature. The mixture was warmed to room temperature and stirred overnight. The insoluble matter was filtered off, and the resulting residue was evaporated to remove the solvent. The resulting solid was washed with a mixed solution of hexane/AcOEt (1/1) and dried, and the resulting white powder (55.30 g) was added to an aqueous solution (228 ml) of NaOH (913 mg). The mixture was stirred at 70° C. for four hours, at room temperature overnight, and then at 100° C. for seven hours. The reaction mixture was concentrated to approximately ⅓, and then a saturated aqueous NH₄Cl solution (300 ml) was added. The resulting white precipitate was filtered and dried to give the titled compound (15.06 g) as a colorless powder.

¹H NMR (200 MHz, CDCl₃) δ ppm 1.38 (t, J=6.6 Hz, 3H), 1.45 (t, J=6.5 Hz, 3H), 4.40-4.57 (m, 4H), 11.58-11.84 (m, 1H)

4-Ethyl-5-methanesulfanyl-4H-[1,2,4]triazol-3-carboxylic acid ethyl ester

(2) Starting from the compound obtained in Example 26-(1), the same procedure as used in Example 1-(4) was repeated to give the titled compound as a light yellow solid (yield 84%).

¹H NMR (200 MHz, CDCl₃) δ ppm 1.31-1.50 (m, 6H), 2.80 (s, 3H), 4.31 (q, J=7.2 Hz, 2H), 4.47 (q, J=7.1 Hz, 2H)

4-Ethyl-5-methanesulfonyl-4H-[1,2,4]triazol-3-carboxylic acid ethyl ester

(3) Starting from the compound obtained in Example 26-(2), the same procedure as used in Example 1-(5) was repeated to give the titled compound as a light yellow solid (yield 84%).

¹H NMR (200 MHz, CDCl₃) δ ppm 1.48 (t, J=7.1 Hz, 3H), 1.53 (t, J=7.2 Hz, 3H), 3.60 (s, 3H), 4.53 (q, J=7.1 Hz, 2H), 4.75 (q, J=7.2 Hz, 2H)

4-Ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]triazol-3-carboxylic acid ethyl ester

(4) To a suspension of NaH (1.236 g, oil free) in THF (68 ml), 4-fluorophenol (4.62 g) was added at 0° C., and the mixture was warmed to room temperature and stirred for 30 minutes. The reaction mixture was cooled to 0° C., and a solution of the compound (8.49 g) of Example 26-(3) in THF (20 ml) was added. The mixture was stirred at room temperature for 30 minutes and thereafter at 70° C. for 1.5 hours. The temperature was cooled to room temperature, and then the reaction mixture was added to a saturated aqueous NH₄Cl solution (500 ml). The mixture was extracted with AcOEt (500 ml) and washed with saturated aqueous sodium chloride. The organic layer was dried (MgSO₄), filtered, and concentrated, and the resulting crude product was purified by column chromatography (OH acid SiO₂, AcOEt/hexane=10-99%) to give the titled compound (5.144 g, light yellow solid).

¹H NMR (200 MHz, CDCl₃) δ ppm 1.35-1.52 (m, 6H), 4.36 (q, J=7.2 Hz, 2H), 4.48 (q, J=7.2 Hz, 2H), 7.02-7.18 (m, 2H), 7.28-7.48 (m, 2H)

4-Ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]triazol-3-carbaldehyde

(5) DiBAl—H (0.99 M, toluene solution, 36.1 ml) was added at −5° C. to a solution of the compound (5.00 g) of Example 26-(4) in THF (50 ml), and the mixture was stirred at the same temperature for three hours. Then, 1N-hydrochloric acid was added to the reaction solution, and the mixture was extracted with AcOEt. The organic layer was washed with saturated aqueous sodium chloride, dried (MgSO₄), filtered, and concentrated, and the resulting crude product was purified by column chromatography (neutral OH SiO₂, AcOEt/hexane=5-40%) to give the titled compound (2.22 g, colorless and oily).

¹H NMR (600 MHz, CDCl₃) δ ppm ppm 1.44 (t, J=7.3 Hz, 3H), 4.37 (J=7.3 Hz, 2H), 7.10-7.17 (m, 2H), 7.36-7.40 (m, 2H)

4-Methylbenzene sulfonic acid 4-ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]triazol-3-ylmethyleneamide

(6) A solution of the compound (1.00 g) obtained in Example 26-(5), 4-methylbenzene sulfonic acid amide (660 mg), and cesium carbonate (1.39 g) in chloroform (21 ml) was stirred at 45° C. for nine hours. The reaction solution was filtered through celite, and the filtrate was concentrated. The resulting residue was purified by silica-gel chromatography (neutral OH silica gel, elution solvent: AcOEt/hexane 0-30%) to give the titled compound (630 mg) as a pale yellow solid.

¹H NMR (600 MHz, CDCl₃) δ ppm 1.30 (t, J=7.1 Hz, 3H), 2.42 (s, 3H), 4.27-4.43 (m, 2H), 7.07-7.15 (m, 2H), 7.31-7.39 (m, 4H), 7.57-7.62 (m, 2H), 8.85 (s, 1H)

N-[1-[4-Ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]triazol-3-yl]2,2,2-trifluoroethyl]-4-methylbenzamide

(7) Under an argon atmosphere, a solution of (trifluoromethyl)trimethyl silane (120 μl) in THF (5.0 ml) was added at −35° C. to a suspension of the compound (200 mg) of Example 26-(6) and tetramethylfluoride (60 mg) in THF (5.0 ml), and the mixture was stirred at the same temperature for an hour and a half. A further portion of tetramethylfluoride (60 mg) and thereafter a further portion of (trifluoromethyl)trimethyl silane (60 mg) were added to the reaction solution at the same temperature, and the mixture was stirred at the same temperature for two hours and warmed to −10° C., and a saturated aqueous ammonium chloride solution was added, and the aqueous layer was extracted with ethyl acetate. The organic layer was dried over magnesium sulfate and filtered, and the filtrate was concentrated. The resulting residue was purified by silica-gel column chromatography (neutral —OH silica gel, AcOEt/hexane 0-40%) to give the titled compound (219 mg) as a pale yellow oily substance.

¹H NMR (600 MHz, CDCl₃) δ ppm 1.32 (t, J=7.3 Hz, 3H), 2.40 (s, 3H), 3.80-3.87 (m, 2H), 4.86-4.92 (m, 1H), 5.59 (d, J=8.3 Hz, 1H), 7.06-7.13 (m, 2H), 7.27-7.31 (m, 2H), 7.32-7.37 (m, 2H), 7.53-7.59 (m, 2H)

1-[4-Ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]triazol-3-yl]-2,2,2,-trifluoroethylamine

(8) HCl (4N, dioxane solution, 1.25 ml) was added at room temperature to a solution of the compound (215 mg) of Example 26-(7) in methanol (5.0 ml), and the mixture was stirred at 85° C. for two hours. The reaction solution was concentrated, and the resulting residue was purified by silica-gel column chromatography (NH SiO₂, AcOEt/hexane 0-50%) to give the titled compound (82 mg) as a colorless oily substance.

(600 MHz, CDCl₃) δ ppm: 1.43 (t, J=7.3 Hz, 3H), 3.97-4.11 (m, 2H), 4.47-4.54 (m, 1H), 7.06-7.12 (m, 2H), 7.35-7.40 (m, 2H)

3,4-Dichloro-N-[1-[4-ethyl-5-(4-fluorophenoxy)-4H-[1,2,4]triazol-3-yl]-2,2,2-trifluoroethyl]-benzenesulfonamide (Compound 687)

(9) Starting from the compound (79 mg) obtained in Example 26-(8), the same procedure as used in Example 1-(8) was repeated to give the titled compound (3 mg) as a light yellow oily substance.

(600 MHz, CDCl₃) δ ppm: 1.43 (t, J=7.1 Hz, 3H), 3.91-4.07 (m, 2H), 5.06-5.13 (m, 1H), 7.07-7.16 (m, 2H), 7.29-7.35 (m, 2H), 7.50-7.57 (m, 1H), 7.67-7.74 (m, 1H), 7.90 (s, 1H)

Example 27 N—((R)-1-[5-[3-(4-Acetylpiperazin-1-yl)-phenoxy]-4-ethyl-4H-[1,2,4]triazol-3-yl]-ethyl)-3,4-dichlorobenzenesulfonamide (Compound 697)

(R)-1-[4-Ethyl-5-(3-piperazin-1-yl-phenoxy)-4H-[1,2,4]triazol-3-yl]-ethylamine

(1) In a pressure-resistant screw cap test tube, DMPU (10 ml), 3-piperazinylphenol (1.34 g), and Cs₂CO₃ (6.13 g) were added to the compound (2.08 g) obtained in Example 1-(6), and the mixture was stirred at 200° C. for 40 minutes. It was cooled to room temperature and then concentrated under reduced pressure, and the resulting crude product was purified by column chromatography (NH SiO₂, AcOEt to MeOH/CHCl₃=1/50) to give the titled compound (yellow oily compound, 1.17 g).

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.40 (t, J=7.1 Hz, 3H), 1.59 (d, J=6.9 Hz, 3H), 2.98-3.04 (m, 4H), 3.14-3.19 (m, 4H), 3.97-4.09 (m, 2H), 4.13-4.18 (m, 1H), 6.70-6.80 (m, 2H), 6.97-7.03 (m, 1H), 7.21-7.26 (m, 1H)

1-(4-[3-[5-((R)-1-Aminoethyl)-4-ethyl-4H-[1,2,4]triazol-3-yloxy]-phenyl]-piperazin-1-yl)-ethanone

(2) AcCl (0.24 ml) was added at −30° C. to a solution of the compound (1.06 g) of Example 27-(1) and Et₃N (1.4 ml) in THF (20 ml), and the mixture was stirred at the same temperature for two hours. Then, the mixture was warmed to room temperature and then stirred for another five hours. The reaction mixture was concentrated, and the resulting crude product was purified by column chromatography (neutral OH SiO₂, MeOH/CHCl₃=1/5) to give a mixture (315 mg, colorless solid) of the titled compound and triethylamine hydrochloride.

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.35 (t, J=7.3 Hz, 3H), 1.72 (d, J=6.4 Hz, 3H), 2.12 (s, 3H), 3.14-3.23 (m, 4H), 3.57-3.64 (m, 2H), 3.71-3.77 (m, 2H), 3.87-4.10 (m, 2H), 4.57-4.66 (m, 1H), 6.70-6.81 (m, 2H), 6.95-6.99 (m, 1H), 7.21-7.26 (m, 1H)

N—((R)-1-[5-[3-(4-Acetylpiperazin-1-yl)-phenoxy]-4-ethyl-4H-[1,2,4]triazol-3-yl]-ethyl)-3,4-dichlorobenzenesulfonamide (Compound 697)

(3) Water was added to a mixture (307 mg) of 1-(4-[3-[5-((R)-1-aminoethyl)-4-ethyl-4H-[1,2,4]triazol-3-yloxy]-phenyl]-piperazin-1-yl)-ethanone obtained in Example 27-(2) and triethylamine hydrochloride, 3,4-dichlorobenzenesulfonyl chloride (0.13 ml), and K₂CO₃ (355 mg). The mixture was stirred at room temperature for 15 hours. The precipitated solid was filtered and purified by column chromatography (NH SiO₂, MeOH/CHCl₃=1/50) to give the titled compound (Compound 697) (117 mg, colorless syrup).

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.38 (t, J=7.3 Hz, 3H), 1.52 (d, J=6.9 Hz, 3H), 2.14 (s, 3H), 3.14-3.27 (m, 4H), 3.56-3.64 (m, 2H), 3.72-3.80 (m, 2H), 3.88-4.01 (m, 2H), 4.58-4.68 (m, 1H), 5.98-6.06 (m, 1H), 6.72-6.82 (m, 2H), 6.95-7.01 (m, 1H), 7.25-7.30 (m, 1H), 7.51-7.57 (m, 1H), 7.65-7.73 (m, 1H), 7.89-7.97 (m, 1H)

Example 28 3,4-Dichloro-N—[(R)-1-[4-ethyl-5-(3-piperazin-1-yl-phenoxy)-4H-[1,2,4]triazol-3-yl]-ethyl]-benzenesulfonamide (Compound 683)

A mixture of the compound (107 mg) obtained in Example 27-(3), NaOH (105 mg), water (2.0 ml), and EtOH (4.0 ml) was stirred at 80° C. for one hour and then stirred at 100° C. for 18 hours. The mixture was cooled to room temperature and then extracted with AcOEt. The organic layer was washed with saturated aqueous sodium chloride, dried (MgSO₄), filtered, and concentrated. The resulting crude product was purified by column chromatography (NH SiO₂, MeOH/CHCl₃=1/30) and then recrystallized (AcOEt/hexane) to give the titled compound (Compound 683) (55 mg, colorless powder).

¹H NMR (600 MHz, DMSO-d₆) δ ppm: 1.24 (t, J=7.3 Hz, 3H), 1.31 (d, J=6.9 Hz, 3H), 2.77-2.86 (m, 4H), 3.03-3.10 (m, 4H), 3.81-3.99 (m, 2H), 4.67-4.75 (m, 1H), 6.56-6.62 (m, 1H), 6.76-6.85 (m, 2H), 7.19-7.27 (m, 1H), 7.69-7.77 (m, 1H), 7.88 (d, J=8.7 Hz, 1H), 7.93-7.97 (m, 1H)

Melting point: 175.0° C. to 178.0° C.

The compounds shown in Table 1 were obtained using the corresponding starting compounds and the procedures shown in Examples 1 to 28.

The compounds obtained in the Examples above are also shown in Table 1 together with the other compounds.

Test Example 1 SIP₁ Binding Assay

Using a human Edg-1 (S1P₁) gene transferred HEK-293 cell strain membrane fraction, the Edg-1 (S1P₁) binding inhibiting action of the compounds of the present invention was determined in accordance with the method described in the literature (Science. 2002, 296: 346) (showing a binding of Kd=0.15 nM, Bmax=2.5 fmol/μg to [³³P]-S1P). The membrane fraction was obtained by treating the cells with a solubilizing buffer (1 mM Tris/HCl, pH 7.2) for 10 minutes on ice, centrifuging at 1000×g for 5 minutes to remove insoluble fractions, and then centrifuging at 40000×g for 30 minutes at 4° C. The resulting membrane fraction was dissolved in a binding buffer (20 mM Tris-HCl, pH 7.4, 100 mM NaCl, 15 mM NaF, 2 mM deoxypyridoxine, 4 mg/mL fatty acid-free BSA), and then [³³P]-S1P (manufactured by ARC, final concentration 0.1 nM) and a DMSO solution (final concentration of the compound 10⁻⁵M, final concentration of DMSO 0.1%) of the test compound were added. Thereafter, the mixture was stirred and then treated for one hour at 30° C. Using a harvester, the membrane fraction was harvested onto unifilter-96 GF/C filter (manufactured by Perkin Elmer), washing was carried out four times with the binding buffer, and the filter was dried. Twenty five μL Microscint 0 (manufactured by Perkin Elmer) was added, and radioactivity was measured using Top Count NXT (manufactured by Packard) to calculate the amount (A) of [³³P]-S1P bound to the membrane fraction at the time when the compound was added.

The same procedure was carried out in the absence of the test compound, and the amount (B) of [³³P]-S1P bound was calculated. Further, the same procedure was carried out in the absence of the test compound by use of HEK-293 cells to which no Edg-1 (S1P₁) gene was introduced, and the background amount (C) of [³³P]-S1P bound was calculated.

The Edg-1 (S1P₁) binding inhibition rates of the compound calculated using the following equation are shown in Table 1.

Inhibition rate (%)=[1−(A−C)/(B−C)]×100

Further, concentrations (IC₅₀) at the time when binding in the absence of the test compound was inhibited by 50% were calculated. The membrane system binding assay was carried out in the presence of test compounds with various concentrations, and the Edg-1 (S1P₁) binding inhibition rates were calculated using the equation above. Then, IC₅₀ values were calculated using Origin (Lightstone Corp.), a software for data analysis.

The compounds below each had an IC₅₀ value of 35 nM or lower and showed particularly strong activity.

Compounds 5, 13, 16, 18, 21, 23, 25, 26, 32, 35, 37, 43, 46, 64, 69, 76, 101, 102, 109, 122, 123, 125, 131, 134, 141, 142, 145, 665.

The following compounds had an IC₅₀ value of 10 nM or below, and showed even stronger activity.

Compounds 24, 39, 40, 70, 75, 87, 93, 94, 107, 111, 112, 121, 132, 133, 137, 138, 139, 140, 147, 151, 663, 666, 667, 669, 671, 681, 683, 690.

Specific IC₅₀ values of the individual compounds are as follows (unit: nM).

Compound 3: 4.2. Compound 7: 35.5. Compound 8: 18.5. Compound 10: 17.5. Compound 11: 8.9. Compound 12: 20.0. Compound 14: 6.4. Compound 15: 32.5. Compound 22: 14.0. Compound 28: 3.1. Compound 34: 2.0. Compound 36: 17.5. Compound 38: 11.7. Compound 42: 22.0. Compound 45: 4.2. Compound 46: 28.5. Compound 49: 6.0. Compound 61: 39.0. Compound 73: 2.2. Compound 74: 15.0. Compound 83: 8.1. Compound 88: 5.4. Compound 99: 25.0. Compound 100: 18.5. Compound 105: 2.9. Compound 108: 18.0. Compound 120:1.7. Compound 129: 20.0. Compound 130: 2.9. Compound 136: 8.1. Compound 143: 7.3. Compound 144: 7.9. Compound 146: 12.0. Compound 148: 1.9. Compound 149: 7.8. Compound 670: 5.2. Compound 678: 10.2. Compound 680:1.4. Compound 688: 1.5. Compound 691: 2.6. Compound 692: 5.1. Compound 694: 2.9. Compound 698: 2.3.

TABLE 1 Compound Melting Binding assay (membrane) number Chemical structure point (° C.) % inhibition (10 μM) Compound 1 ABS

182.0-184.0 100.8 Compound 2 ABS

134.0-138.0 97.8 Compound 3 ABS

183.5-187.5 98.7 Compound 4 ABS

198.5-200.5 95.7 Compound 5 ABS

160.0-161.0 97.3 Compound 6 ABS

180.0-190.0 98.2 Compound 7 ABS

159.5-161.5 99.4 Compound 8 ABS

179.0-189.5 100.1 Compound 9 ABS

145.0-148.0 100.3 Compound 10 ABS

182.5-184.5 99.8 Compound 11 ABS

155.0-160.0 98.5 Compound 12 ABS

190.0-192.0 99.2 Compound 13 ABS

152.0-156.0 102.0 Compound 14 ABS

161.0-162.5 99.5 Compound 15 ABS

200.0-205.0 102.7 Compound 16 ABS

125.0-127.0 101.3 Compound 17 ABS

129.5-131.5 95.4 Compound 18 ABS

189.0-194.0 102.1 Compound 19 ABS

145.0-150.0 97.9 Compound 20 ABS

118.0-120.0 97.4 Compound 21 ABS

146.5-149.5 96.7 Compound 22 ABS

163.0-167.5 95.4 Compound 23 ABS

173.0-176.0 96.7 Compound 24 ABS

172.5-173.0 101.0 Compound 25 ABS

155.0-156.0 97.5 Compound 26 ABS

159.0-164.0 97.9 Compound 27 ABS

163.0-168.0 100.1 Compound 28 ABS

165.0-170.0 104.4 Compound 29 ABS

177.0-178.5 101.4 Compound 30 ABS

212.0-216.0 100.4 Compound 31 ABS

143.0-146.0 101.2 Compound 32 ABS

147.0-148.0 104.1 Compound 33 ABS

173.5-174.5 100.8 Compound 34 ABS

192.5-195.5 106.1 Compound 35 ABS

156.0-159.0 100.4 Compound 36 ABS

125.0-130.0 102.2 Compound 37 ABS

145.0-147.0 100.3 Compound 38 ABS

148.5-150.0 104.8 Compound 39 ABS

176.0-178.0 98.5 Compound 40 ABS

155.5-156.5 105.6 Compound 41 ABS

166.0-170.0 92.0 Compound 42 ABS

176.5-179.5 102.4 Compound 43 ABS

182.5-185.0 99.8 Compound 44 ABS

140.0-145.5 100.1 Compound 45 ABS

194.0-196.0 106.0 Compound 46 ABS

247.0-250.0 94.6 Compound 47 ABS

191.0-192.0 102.3 Compound 48 ABS

195.5-196.5 96.7 Compound 49 ABS

198.0-199.0 102.5 Compound 50 ABS

129.0-130.0 92.9 Compound 51 ABS

148.5-150.5 99.9 Compound 52 ABS

203.0-205.0 100.2 Compound 53 ABS

172.0-173.0 86.8 Compound 54 ABS

192.0-193.0 104.1 Compound 55 ABS

141.0-143.0 80.6 Compound 56 ABS

189.0-191.0 88.3 Compound 57 ABS

164.0-165.0 Compound 58 ABS

181.0-183.0 99.7 Compound 59 ABS

169.5-170.5 94.3 Compound 60 ABS

192.5-195.0 98.9 Compound 61 ABS

93.0-99.0 102.2 Compound 62 ABS

186.0-188.5 83.5 Compound 63 ABS

216.5-217.5 104.7 Compound 64 ABS

223.0-224.0 100.8 Compound 65 ABS

201.0-202.0 105.3 Compound 66 ABS

183.0-190.0 93.4 Compound 67 ABS

182.0-188.0 95.5 Compound 68 ABS

212.0-223.0 100.9 Compound 69 ABS

119.0-120.5 103.2 Compound 70 ABS

144.0-146.0 96.5 Compound 71 ABS

126.0-135.0 99.3 Compound 72 ABS

198.0-200.5 99.0 Compound 73 ABS

185.0-187.0 103.3 Compound 74 ABS

218.5-227.0 104.9 Compound 75 ABS

177.0-179.0 95.0 Compound 76 ABS

151.5-153.5 99.2 Compound 77 ABS

123.0-127.0 99.7 Compound 78 ABS

178.0-179.0 90.7 Compound 79 ABS

190.0-195.0 103.7 Compound 80 ABS

164.0-165.0 87.6 Compound 81 ABS

160.0-165.0 93.2 Compound 82 ABS

142.0-145.0 100.8 Compound 83 ABS

170.0-173.0 100.7 Compound 84 ABS

160.0-165.0 100.5 Compound 85 ABS

133.0-134.0 100.0 Compound 86 ABS

176.0-177.0 106.7 Compound 87 ABS

174.0-179.0 99.9 Compound 88 ABS

188.5-190.5 99.5 Compound 89 ABS

101.0-103.0 90.3 Compound 90 ABS

168.0-170.0 99.0 Compound 91 ABS

137.0-138.0 90.6 Compound 92 ABS

118.0-120.0 92.1 Compound 93 ABS

167.5-169.5 99.9 Compound 94 ABS

190.0-192.0 106.4 Compound 95 ABS

205.0-208.5 92.4 Compound 96 ABS

191.0-194.0 78.7 Compound 97 ABS

158.0-159.0 93.0 Compound 98 ABS

143.0-144.0 100.4 Compound 99 ABS

103.0-105.5 102.4 Compound 100 ABS

109.9 Compound 101 ABS

142.0-143.0 100.9 Compound 102 ABS

117.0-118.0 104.2 Compound 103 ABS

146.5-147.5 91.2 Compound 104 ABS

187.0-187.5 95.2 Compound 105 ABS

121.0-123.0 104.4 Compound 106 ABS

132.0-134.0 110.2 Compound 107 ABS

159.0-162.0 103.8 Compound 108 ABS

175.0-180.0 101.3 Compound 109 ABS

152.0-153.0 103.5 Compound 110 ABS

187.5-188.5 103.6 Compound 111 ABS

204.0-205.0 108.7 Compound 112 ABS

171.0-173.0 99.2 Compound 113 ABS

183.0-185.0 74.2 Compound 114 ABS

185.0-186.0 94.5 Compound 115 ABS

125.5-126.5 81.8 Compound 116 ABS

192.0-195.0 83.1 Compound 117 ABS

153.5-155.5 87.1 Compound 118 ABS

Compound 119 ABS

Compound 120 ABS

211.5-216.5 93.03 Compound 121 ABS

195.5-198.5 103.45 Compound 122 ABS

167.0-170.0 81.93 Compound 123 ABS

162.0-165.0 97.12 Compound 124 ABS

178.5-180.0 97.44 Compound 125 ABS

253.5-254.5 94.28 Compound 126 ABS

176.5-178.0 91.80 Compound 127 ABS

94.44 Compound 128 ABS

182.5-183.5 90.70 Compound 129 ABS

 96.0-104.0 96.79 Compound 130 ABS

107.0-114.0 98.87 Compound 131 ABS

102.0-110.5 97.35 Compound 132 ABS

 95.0-104.0 99.52 Compound 133 ABS

164.0-169.5 101.11 Compound 134 ABS

108.5-114.5 101.47 Compound 135 ABS

188.5-192.0 100.63 Compound 136 ABS

100.0-106.0 96.51 Compound 137 ABS

173.5-177.0 101.74 Compound 138 ABS

167.5-169.0 99.58 Compound 139 ABS

174.0-177.0 101.46 Compound 140 ABS

110.0-119.0 101.57 Compound 141 ABS

169.0-173.0 104.70 Compound 142 ABS

183.0-184.0 98.11 Compound 143 ABS

144.0-145.0 99.89 Compound 144 ABS

187.0-188.0 99.38 Compound 145 ABS

150.0-152.0 101.30 Compound 146 ABS

121.0-122.0 101.65 Compound 147 ABS

141.0-143.0 102.74 Compound 148 ABS

154.5-155.5 102.47 Compound 149

212.0-214.5 100.70 Compound 1

191.5-196.0 93.40 Compound 2 ABS

252.0-255.0 102.84 Binding assay (mem- brane) % Compound APCI MS APCI MS inhibition number Chemical structure (M − H)⁻ (M + H)+ (10 μM) Compound 152 ABS

467 469 Compound 153 ABS

446 448 Compound 154 ABS

431 433 92.3 Compound 155 ABS

389 391 59.9 Compound 156 ABS

467, 469 469, 471 106.6 Compound 157 ABS

445 447 74.6 Compound 158 ABS

467, 469 469, 471 Compound 159 ABS

461 463 Compound 160 ABS

467, 469 469, 471 96.9 Compound 161 ABS

551, 553 553, 554 Compound 162 ABS

423 425 109.3 Compound 163 ABS

414 416 Compound 164 ABS

465 467 Compound 165 ABS

414 416 72.9 Compound 166 ABS

493 495 Compound 167 ABS

451 453 113.3 Compound 168 ABS

457 459 68.4 Compound 169 ABS

457 459 Compound 170 ABS

449 451 76.0 Compound 171 ABS

341 343 Compound 172 ABS

417 419 92.0 Compound 173 ABS

407 409 97.2 Compound 174 ABS

431 433 52.5 Compound 175 ABS

419 421 102.7 Compound 176 ABS

327 329 Compound 177 ABS

467 469 55.3 Compound 178 ABS

467 469 Compound 179 ABS

439 441 83.0 Compound 180 ABS

467 469 94.6 Compound 181 ABS

479 481 50.4 Compound 182 ABS

514 517 109.3 Compound 183 ABS

415 417 92.8 Compound 184 ABS

491, 493 493, 495 97.3 Compound 185 ABS

515 517 Compound 186 ABS

403 405 86.8 Compound 187 ABS

403 405 Compound 188 ABS

457 459 106.6 Compound 189 ABS

403 405 99.7 Compound 190 ABS

473 475 87.9 Compound 191 ABS

415 417 96.9 Compound 192 ABS

403 405 95.2 Compound 193 ABS

530 532 Compound 194 ABS

540 542 80.7 Compound 195 ABS

417 419 90.1 Compound 196 ABS

479 481 65.6 Compound 197 ABS

535 537 Compound 198 ABS

441 443 Compound 199 ABS

408 410 Compound 200 ABS

465 467 Compound 201 ABS

450 452 84.3 Compound 202 ABS

421 423 Compound 203 ABS

447 449 Compound 204 ABS

457 459 Compound 205 ABS

465 467 Compound 206 ABS

431 433 85.4 Compound 207 ABS

491, 493 493, 495 107.7 Compound 208 ABS

445 447 80.2 Compound 209 ABS

457 459 91.4 Compound 210 ABS

437 439 Compound 211 ABS

423 425 Compound 212 ABS

525 527 69.7 Compound 213 ABS

457 459 101.9 Compound 214 ABS

437 439 102.1 Compound 215 ABS

419 421 91.4 Compound 216 ABS

503, 505 505, 507 88.9 Compound 217 ABS

461 463 57.5 Compound 218 ABS

497, 499 499, 501 74.7 Compound 219 ABS

421 423 70.8 Compound 220 ABS

459 461 93.7 Compound 221 ABS

433 435 69.2 Compound 222 ABS

473 475 Compound 223 ABS

414 416 90.8 Compound 224 ABS

481 483 Compound 225 ABS

491, 493 493, 495 Compound 226 ABS

457 459 80.4 Compound 227 ABS

425 427 51.4 Compound 228 ABS

449 451 53.9 Compound 229 ABS

441 443 Compound 230 ABS

407 409 Compound 231 ABS

423 425 65.1 Compound 232 ABS

431 433 68.7 Compound 233 ABS

455 457 87.1 Compound 234 ABS

495, 497 497, 499 50.6 Compound 235 ABS

481, 483 483, 485 82.9 Compound 236 ABS

448 450 Compound 237 ABS

443 445 64.8 Compound 238 ABS

425 427 Compound 239 ABS

525 527 Compound 240 ABS

459 461 82.5 Compound 241 ABS

425 427 95.8 Compound 242 ABS

485, 487 487, 489 85.9 Compound 243 ABS

459 461 90.0 Compound 244 ABS

503, 505 505, 507 94.6 Compound 245 ABS

459 461 89.3 Compound 246 ABS

471 473 Compound 247 ABS

493 495 Compound 248 ABS

471 473 104.9 Compound 249 ABS

581, 583 583, 585 Compound 250 ABS

425 427 Compound 251 ABS

491 493 59.0 Compound 252 ABS

407 409 82.8 Compound 253 ABS

480 482 Compound 254 ABS

453 455 75.1 Compound 255 ABS

471 473 86.4 Compound 256 ABS

443 445 85.2 Compound 257 ABS

545, 547 547, 549 78.2 Compound 258 ABS

462 464 67.9 Compound 259 ABS

437 439 Compound 260 ABS

545, 547 547, 549 74.1 Compound 261 ABS

432 434 73.6 Compound 262 ABS

417 419 79.6 Compound 263 ABS

455 457 82.6 Compound 264 ABS

455 457 95.9 Compound 265 ABS

503, 505 505, 507 59.1 Compound 266 ABS

425 427 99.0 Compound 267 ABS

441 443 89.6 Compound 268 ABS

443 445 99.9 Compound 269 ABS

485, 487 487, 489 91.5 Compound 270 ABS

535, 537 537, 539 73.0 Compound 271 ABS

535, 537 537, 539 57.1 Compound 272 ABS

421 423 104.3 Compound 273 ABS

421 423 71.6 Compound 274 ABS

441 443 53.5 Compound 275 ABS

485, 487 487, 489 107.1 Compound 276 ABS

501, 503 503, 505 94.4 Compound 277 ABS

535, 537 537, 539 Compound 278 ABS

477 479 Compound 279 ABS

421 423 79.6 Compound 280 ABS

441 443 87.3 Compound 281 ABS

475 477 Compound 282 ABS

495 497 Compound 283 ABS

482 484 Compound 284 ABS

404 406 Compound 285 ABS

419 421 Compound 286 ABS

409 411 60.6 Compound 287 ABS

456 455 Compound 288 ABS

394 396 Compound 289 ABS

447 449 105.6 Compound 290 ABS

424 426 Compound 291 ABS

447 449 Compound 292 ABS

447 449 106.9 Compound 293 ABS

431 433 Compound 294 ABS

395 397 50.8 Compound 295 ABS

462 464 Compound 296 ABS

469 471 Compound 297 ABS

478 480 Compound 298 ABS

543 545 Compound 299 ABS

519 521 Compound 300 ABS

423 425 82.1 Compound 301 ABS

449 451 78.8 Compound 302 ABS

538 540 Compound 303 ABS

491 493 77.4 Compound 304 ABS

517 519 Compound 305 ABS

561 563 Compound 306 ABS

431 433 60.2 Compound 307 ABS

457 459 94.4 Compound 308 ABS

490 492 Compound 309 ABS

490 492 Compound 310 ABS

494 496 Compound 311 ABS

447 449 76.5 Compound 312 ABS

461 463 Compound 313 ABS

437 439 Compound 314 ABS

502 504 52.2 Compound 315 ABS

440 442 Compound 316 ABS

525 527 Compound 317 ABS

535, 537 537, 539 Compound 318 ABS

535, 537 537, 539 78.9 Compound 319 ABS

535, 537 537, 539 61.7 Compound 320 ABS

390 392 Compound 321 ABS

475 477 Compound 322 ABS

539 541 Compound 323 ABS

445 447 77.9 Compound 324 ABS

445 447 81.8 Compound 325 ABS

488 490 Compound 326 ABS

467 469 Compound 327 ABS

452 454 92.3 Compound 328 ABS

410 412 85.2 Compound 329 ABS

488, 490 490, 492 100.8 Compound 330 ABS

466 468 81.6 Compound 331 ABS

488, 490 490, 492 59.8 Compound 332 ABS

482 484 Compound 333 ABS

488, 490 490, 492 102.2 Compound 334 ABS

572, 574 574, 576 Compound 335 ABS

444 446 106.1 Compound 336 ABS

435 437 56.8 Compound 337 ABS

486 488 Compound 338 ABS

435 437 69.2 Compound 339 ABS

514 516 62.8 Compound 340 ABS

472 474 100.0 Compound 341 ABS

478 480 92.8 Compound 342 ABS

478 480 53.6 Compound 343 ABS

470 472 86.5 Compound 344 ABS

362 364 Compound 345 ABS

438 440 90.4 Compound 346 ABS

428 430 89.2 Compound 347 ABS

452 454 50.1 Compound 348 ABS

440 442 109.1 Compound 349 ABS

348 350 Compound 350 ABS

488 490 75.0 Compound 351 ABS

488 490 Compound 352 ABS

460 462 88.5 Compound 353 ABS

488 490 92.3 Compound 354 ABS

500 502 Compound 355 ABS

536 538 98.8 Compound 356 ABS

436 438 95.6 Compound 357 ABS

512, 514 514, 516 106.1 Compound 358 ABS

536 538 Compound 359 ABS

424 426 95.7 Compound 360 ABS

424 426 Compound 361 ABS

424 426 96.9 Compound 362 ABS

494 496 95.1 Compound 363 ABS

436 438 96.2 Compound 364 ABS

424 426 87.5 Compound 365 ABS

551 553 Compound 366 ABS

561 563 63.2 Compound 367 ABS

438 440 94.3 Compound 368 ABS

500 502 60.5 Compound 369 ABS

556 558 Compound 370 ABS

462 464 Compound 371 ABS

429 431 Compound 372 ABS

471 473 106.3 Compound 373 ABS

442 444 Compound 374 ABS

468 470 Compound 375 ABS

478 480 Compound 376 ABS

486 488 Compound 377 ABS

452 454 73.9 Compound 378 ABS

466 468 71.6 Compound 379 ABS

478 480 89.2 Compound 380 ABS

458 460 Compound 381 ABS

444 446 Compound 382 ABS

546 548 66.9 Compound 383 ABS

478 480 83.6 Compound 384 ABS

458 460 88.1 Compound 385 ABS

462 464 98.0 Compound 386 ABS

440 442 84.0 Compound 387 ABS

524, 526 526, 528 63.5 Compound 388 ABS

482 484 65.8 Compound 389 ABS

518, 520 520, 522 88.0 Compound 390 ABS

442 444 65.9 Compound 391 ABS

480 482 80.4 Compound 392 ABS

566, 568 568, 570 73.6 Compound 393 ABS

454 456 79.7 Compound 394 ABS

494 496 Compound 395 ABS

435 437 79.1 Compound 396 ABS

502 504 Compound 397 ABS

512, 514 514, 516 Compound 398 ABS

478 480 84.7 Compound 399 ABS

446 448 Compound 400 ABS

470 472 75.3 Compound 401 ABS

462 464 Compound 402 ABS

428 430 Compound 403 ABS

444 446 72.5 Compound 404 ABS

452 454 60.2 Compound 405 ABS

476 478 61.4 Compound 406 ABS

516, 518 518, 520 56.3 Compound 407 ABS

502, 504 504, 506 68.2 Compound 408 ABS

469 471 Compound 409 ABS

464 466 74.7 Compound 410 ABS

446 448 Compound 411 ABS

546 548 Compound 412 ABS

480 482 82.5 Compound 413 ABS

446 448 95.3 Compound 414 ABS

506, 508 508, 510 92.5 Compound 415 ABS

480 482 91.5 Compound 416 ABS

524, 526 526, 528 83.2 Compound 417 ABS

480 482 90.8 Compound 418 ABS

492 494 Compound 419 ABS

514 516 Compound 420 ABS

602, 604 604, 606 61.0 Compound 421 ABS

446 448 Compound 422 ABS

512 514 83.1 Compound 423 ABS

428 430 87.8 Compound 424 ABS

501 503 Compound 425 ABS

474 476 90.1 Compound 426 ABS

492 494 92.3 Compound 427 ABS

464 466 86.5 Compound 428 ABS

566, 568 568, 570 81.4 Compound 429 ABS

483 485 71.1 Compound 430 ABS

458 460 50.0 Compound 431 ABS

566, 568 568, 570 80.5 Compound 432 ABS

453 455 84.2 Compound 433 ABS

438 440 93.8 Compound 434 ABS

476 478 79.5 Compound 435 ABS

476 478 94.6 Compound 436 ABS

524, 526 526, 528 67.5 Compound 437 ABS

446 448 97.3 Compound 438 ABS

462 464 71.6 Compound 439 ABS

464 466 98.1 Compound 440 ABS

502, 504 504, 506 88.4 Compound 441 ABS

506, 508 508, 510 63.0 Compound 442 ABS

556, 558 558, 560 70.1 Compound 443 ABS

556, 558 558, 560 55.7 Compound 444 ABS

442 444 100.2 Compound 445 ABS

442 444 55.6 Compound 446 ABS

462 464 75.8 Compound 447 ABS

506, 508 508, 510 95.5 Compound 448 ABS

522, 524 524, 526 81.1 Compound 449 ABS

556, 558 558, 560 Compound 450 ABS

498 500 Compound 451 ABS

442 444 76.8 Compound 452 ABS

462 464 68.9 Compound 453 ABS

496 498 Compound 454 ABS

516 518 Compound 455 ABS

503 505 Compound 456 ABS

425 427 Compound 457 ABS

440 442 Compound 458 ABS

430 432 83.8 Compound 459 ABS

474 476 Compound 460 ABS

482 484 53.2 Compound 461 ABS

468 470 99.7 Compound 462 ABS

445 447 Compound 463 ABS

468 470 Compound 464 ABS

468 470 87.9 Compound 465 ABS

452 454 Compound 466 ABS

416 418 51.1 Compound 467 ABS

483 485 59.9 Compound 468 ABS

490 492 56.2 Compound 469 ABS

499 501 Compound 470 ABS

564 566 Compound 471 ABS

540 542 Compound 472 ABS

444 446 55.3 Compound 473 ABS

470 472 74.5 Compound 474 ABS

559 561 Compound 475 ABS

512 514 51.8 Compound 476 ABS

482 484 Compound 477 ABS

452 454 58.1 Compound 478 ABS

478 480 87.0 Compound 479 ABS

511 513 Compound 480 ABS

511 513 Compound 481 ABS

515 517 Compound 482 ABS

468 470 87.4 Compound 483 ABS

482 484 Compound 484 ABS

523 525 65.3 Compound 485 ABS

461 463 Compound 486 ABS

546 548 Compound 487 ABS

556, 558 558, 560 Compound 488 ABS

556, 558 558, 560 62.5 Compound 489 ABS

556, 558 558, 560 Compound 490 ABS

411 413 Compound 491 ABS

496 498 Compound 492 ABS

560 562 Compound 493 ABS

466 468 83.1 Compound 494 ABS

456 458 66.0 Compound 495 ABS

547 549 Compound 496 ABS

526 528 Compound 497 ABS

511 513 103.6 Compound 498 ABS

469 471 84.0 Compound 499 ABS

547, 549 549, 551 108.9 Compound 500 ABS

525 527 90.2 Compound 501 ABS

547, 549 549, 551 61.7 Compound 502 ABS

541 543 75.5 Compound 503 ABS

547, 549 549, 551 116.0 Compound 504 ABS

631, 633 633, 635 53.5 Compound 505 ABS

503 505 108.0 Compound 506 ABS

494 496 83.2 Compound 507 ABS

545 547 84.8 Compound 508 ABS

494 496 Compound 509 ABS

573 575 87.0 Compound 510 ABS

531 533 113.5 Compound 511 ABS

537 539 98.6 Compound 512 ABS

537 539 60.7 Compound 513 ABS

529 531 96.6 Compound 514 ABS

421 423 Compound 515 ABS

497 499 108.9 Compound 516 ABS

487 489 106.7 Compound 517 ABS

511 513 69.6 Compound 518 ABS

499 501 110.8 Compound 519 ABS

407 409 Compound 520 ABS

547 549 69.9 Compound 521 ABS

547 549 Compound 522 ABS

519 521 98.4 Compound 523 ABS

547 549 113.5 Compound 524 ABS

559 561 83.0 Compound 525 ABS

595 597 110.9 Compound 526 ABS

571, 573 573, 575 111.8 Compound 527 ABS

595 597 52.1 Compound 528 ABS

483 485 106.2 Compound 529 ABS

483 485 Compound 530 ABS

537 539 114.7 Compound 531 ABS

483 485 100.1 Compound 532 ABS

553 555 99.2 Compound 533 ABS

495 497 Compound 534 ABS

483 485 100.8 Compound 535 ABS

610 612 Compound 536 ABS

620 622 50.3 Compound 537 ABS

497 499 96.7 Compound 538 ABS

559 561 97.1 Compound 539 ABS

615 617 Compound 540 ABS

521 523 64.3 Compound 541 ABS

488 490 65.5 Compound 542 ABS

545 547 50.1 Compound 543 ABS

530 532 111.8 Compound 544 ABS

501 503 53.9 Compound 545 ABS

527 529 50.7 Compound 546 ABS

537 539 55.8 Compound 547 ABS

545 547 Compound 548 ABS

511 513 96.7 Compound 549 ABS

525 527 89.2 Compound 550 ABS

537 539 103.6 Compound 551 ABS

517 519 76.1 Compound 552 ABS

503 505 67.2 Compound 553 ABS

605 607 106.6 Compound 554 ABS

537 539 116.5 Compound 555 ABS

517 519 102.0 Compound 556 ABS

499 501 104.8 Compound 557 ABS

583, 585 585, 587 107.3 Compound 558 ABS

541 543 64.8 Compound 559 ABS

577, 579 579, 581 79.3 Compound 560 ABS

501 503 74.4 Compound 561 ABS

539 541 92.4 Compound 562 ABS

513 515 93.3 Compound 563 ABS

553 555 64.1 Compound 564 ABS

494 496 105.4 Compound 565 ABS

561 563 Compound 566 ABS

571, 573 573, 575 88.7 Compound 567 ABS

537 539 101.6 Compound 568 ABS

505 507 71.1 Compound 569 ABS

529 531 75.0 Compound 570 ABS

521 523 77.4 Compound 571 ABS

487 489 55.7 Compound 572 ABS

503 505 96.5 Compound 573 ABS

511 513 86.3 Compound 574 ABS

575, 577 577, 579 86.9 Compound 575 ABS

561, 563 563, 565 103.7 Compound 576 ABS

528 530 81.4 Compound 577 ABS

523 525 92.4 Compound 578 ABS

505 507 Compound 579 ABS

605 607 87.6 Compound 580 ABS

539 541 89.2 Compound 581 ABS

505 507 99.9 Compound 582 ABS

565, 567 567, 569 106.0 Compound 583 ABS

539 541 108.9 Compound 584 ABS

583, 585 585, 587 96.2 Compound 585 ABS

539 541 103.0 Compound 586 ABS

551 553 87.9 Compound 587 ABS

573 575 60.0 Compound 588 ABS

551 553 109.3 Compound 589 ABS

661, 663 663, 665 80.2 Compound 590 ABS

505 507 62.3 Compound 591 ABS

571 573 77.5 Compound 592 ABS

487 489 95.8 Compound 593 ABS

560 562 65.9 Compound 594 ABS

533 535 84.0 Compound 595 ABS

551 553 93.7 Compound 596 ABS

523 525 100.3 Compound 597 ABS

625, 627 627, 629 97.3 Compound 598 ABS

542 544 89.5 Compound 599 ABS

517 519 80.6 Compound 600 ABS

625, 627 627, 629 100.5 Compound 601 ABS

512 514 100.4 Compound 602 ABS

497 499 106.7 Compound 603 ABS

535 537 106.8 Compound 604 ABS

535 537 109.4 Compound 605 ABS

583, 585 585, 587 83.4 Compound 606 ABS

505 507 107.8 Compound 607 ABS

521 523 Compound 608 ABS

523 525 108.6 Compound 609 ABS

565, 567 567, 569 93.1 Compound 610 ABS

615, 617 617, 619 91.2 Compound 611 ABS

615, 617 617, 619 63.9 Compound 612 ABS

501 503 114.0 Compound 613 ABS

501 503 90.9 Compound 614 ABS

521 523 77.8 Compound 615 ABS

565, 567 567, 569 110.3 Compound 616 ABS

581, 583 583, 585 99.9 Compound 617 ABS

615, 617 617, 619 77.5 Compound 618 ABS

557 559 65.4 Compound 619 ABS

497 499 114.2 Compound 620 ABS

501 503 88.4 Compound 621 ABS

521 523 95.4 Compound 622 ABS

555 557 58.9 Compound 623 ABS

575 577 Compound 624 ABS

562 564 Compound 625 ABS

484 486 Compound 626 ABS

499 501 61.1 Compound 627 ABS

489 491 90.0 Compound 628 ABS

533 535 64.4 Compound 629 ABS

541 543 101.1 Compound 630 ABS

527 529 107.4 Compound 631 ABS

504 506 95.2 Compound 632 ABS

527 529 59.9 Compound 633 ABS

527 529 111.2 Compound 634 ABS

511 513 51.0 Compound 635 ABS

475 477 68.7 Compound 636 ABS

542 544 85.7 Compound 637 ABS

549 551 50.6 Compound 638 ABS

558 560 Compound 639 ABS

623 625 Compound 640 ABS

599 601 59.5 Compound 641 ABS

503 505 85.2 Compound 642 ABS

529 531 85.5 Compound 643 ABS

618 620 Compound 644 ABS

571 573 93.0 Compound 645 ABS

597 599 Compound 646 ABS

641 643 Compound 647 ABS

511 513 99.0 Compound 648 ABS

537 539 107.8 Compound 649 ABS

570 572 64.7 Compound 650 ABS

570 572 Compound 651 ABS

574 576 Compound 652 ABS

527 529 91.9 Compound 653 ABS

541 543 Compound 654 ABS

582 584 71.7 Compound 655 ABS

605 607 Compound 656 ABS

615, 617 617, 619 Compound 657 ABS

615, 617 617, 619 94.9 Compound 658 ABS

615, 617 617, 619 80.4 Compound 659 ABS

470 472 Compound 660 ABS

555 557 Compound 661 ABS

619 621 Compound 662 ABS

525 527 95.4 Compound Melting Binding assay (membrane) number Chemical structure point (° C.) % inhibition (10 μM) Compound 663 ABS

210.0-217.0 99.5 Compound 664 ABS

218.0-221.5 85.4 Compound 665 ABS

197.0-201.0 100.3 Compound 666 ABS

143.5-144.5 97.9 Compound 667 ABS

207.0-208.0 99.2 Compound 668 ABS

98.6 Compound 669 ABS

131.5-132.5 100.3 Compound 670 ABS

214.5-218.0 100.8 Compound 671

100.6 Compound 672 ABS

102.7 Compound 673 ABS

62.0 Compound 674 ABS

97.0 Compound 675 ABS

96.6 Compound 676 ABS

92.6 Compound 677 ABS

60.8 Compound 678 ABS

97.4 Compound 679 ABS

104.0 Compound 680 ABS

169.5-170.5 100.1 Compound 681 ABS

189.0-189.5 100.2 Compound 682

228.0-228.5 76.6 Compound 683 ABS

175.0-178.0 100.5 Compound 684 ABS

169.5-171.5 Compound 685

255.0-260.0 65.1 Compound 686

220.5-221.0 92.7 Compound 687

80.1 Compound 688 ABS

192.0-193.0 100.5 Compound 689 ABS

92.7 Compound 690 ABS

198.0-200.0 102.2 Compound 691 ABS

180.0-182.0 98.5 Compound 692 ABS

227.0-229.0 98.5 Compound 693 ABS

158.0-161.0 97.7 Compound 694 ABS

189.0-191.0 106.0 Compound 695 ABS

Compound 696 ABS

Compound 697 ABS

Compound 698 ABS

In Table 1, some of the compounds have two data on APCI MS (M−H)− and APCI MS (M+H)⁺, because two peaks were detected due to isotopes of a chlorine atom or a bromine atom.

For the compounds listed below, ¹H-NMR data is shown.

Compound 100: (600 MHz, DMSO-d₆) δ ppm: 1.21 (t. J=7.1 Hz, 3H) 1.27 (d, J=6.9 Hz, 3H) 3.22 (s, 6H) 3.40-3.50 (m, 8H) 3.77-3.93 (m, 2H) 4.68 (q, J=6.9 Hz, 1H) 6.34 (dd, J=7.3, 2.29 Hz, 1H) 6.52 (dd, J=8.3, 2.29 Hz, 1H) 6.56 (t, J=2.3 Hz, 1H) 7.12 (t, J=8.3 Hz, 1H) 7.70 (dd, J=8.3, 2.3 Hz, 1H) 7.85 (d, J=8.3 Hz, 1H) 7.92 (d, J=1.8 Hz, 1H) 8.66 (s, 1H).

Compound 119: (600 MHz, CDCl₃) δ ppm: 1.34 (t, J=7.3 Hz, 3H), 1.50 (d, J=7.3 Hz, 3H), 3.89-3.98 (m, 2H), 4.59-4.65 (m, 1H), 5.06 (s, 2H) 6.37-6.42 (m, 1H), 6.80-6.95 (m, 2H), 7.01-7.04 (m, 1H), 7.24-7.36 (m, 2H), 7.36-7.44 (m, 4H), 7.49-7.53 (m, 1H), 7.67-7.73 (m, 1H), 7.93-7.96 (m, 1H).

Compound 127: (600 MHz, CDCl₃) δ ppm: 1.38 (t, J=7.1 Hz, 3H), 1.49 (d, J=6.9 Hz, 3H), 2.41 (s, 3H), 3.93-4.02 (m, 2H), 4.59-4.65 (m, 1H), 5.47 (d, J=9.6 Hz, 1H), 7.05-7.10 (m, 2H), 7.31-7.37 (m, 3H), 7.61-7.64 (m, 1H), 7.80-7.82 (m, 1H).

Compound 129: (600 MHz, DMSO-d₆) δ ppm: 1.21-1.29 (m, 6H), 2.29 (s, 6H), 3.83-4.01 (m, 2H), 4.61 (q, J=6.4 Hz, 1H), 6.43-6.47 (m, 1H), 6.89-6.93 (m, 1H), 7.34-7.40 (m, 3H), 7.52-7.60 (m, 3H), 8.24 (s, 1H), 11.18 (s, 1H).

Compound 130: (600 MHz, DMSO-d₆) δ ppm: 1.22 (d, J=6.8 Hz, 3H), 1.26 (t, J=7.1 Hz, 3H), 3.87-4.02 (m, 2H), 4.70 (q, J=6.8 Hz, 1H), 6.43-6.45 (m, 1H), 6.77-6.80 (m, 1H), 7.28-7.30 (m, 1H), 7.36-7.38 (m, 1H), 7.50-7.53 (m, 1H), 7.67-7.75 (m, 2H), 7.83-7.86 (m, 1H), 8.04-8.07 (m, 1H), 8.12-8.19 (m, 2H), 8.45-8.47 (m, 1H), 8.52 (s, 1H), 11.16 (s, 1H).

Compound 131: (600 MHz, DMSO-d₆) δ ppm: 1.28 (t, J=7.1 Hz, 3H), 1.35 (d, J=6.9 Hz, 3H), 2.36 (s, 3H), 3.89-4.03 (m, 2H), 4.64-4.72 (m, 1H), 6.44-6.46 (m, 1H), 6.87-6.90 (m, 1H), 7.36-7.38 (m, 2H), 7.53-7.57 (m, 1H), 7.82-7.84 (m, 1H), 7.88-7.91 (m, 1H), 8.77 (s, 1H), 11.18 (s, 1H).

Compound 132: (600 MHz, DMSO-d₆) δ ppm: 1.23-1.31 (m, 6H), 2.39 (s, 3H), 3.85-4.02 (m, 2H), 4.69 (q, J=6.9 Hz, 1H), 6.43-6.47 (m, 1H), 6.88-6.92 (m, 1H), 7.36-7.39 (m, 2H), 7.53-7.60 (m, 2H), 7.64-7.68 (m, 1H), 7.77-7.80 (m, 1H), 8.51 (s, 1H), 11.18 (s, 1H).

Compound 134: (600 MHz, DMSO-d₆) δ ppm: 1.29 (t, J=7.3 Hz, 3H), 1.36 (d, J=6.9 Hz, 3H), 3.89-4.05 (m, 2H), 4.67-4.73 (m, 1H), 6.44-6.46 (m, 1H), 6.86-6.90 (m, 1H), 7.35-7.39 (m, 2H), 7.54-7.57 (m, 1H), 7.83-7.88 (m, 1H), 7.91-7.94 (m, 1H), 9.01 (s, 1H), 11.17 (s, 1H).

Compound 136: (600 MHz, DMSO-d₆) δ ppm: 1.23-1.31 (m, 6H), 3.85-4.02 (m, 2H), 4.72 (q, J=6.9 Hz, 1H), 6.44-6.47 (m, 1H), 6.87-6.91 (m, 1H), 7.34-7.39 (m, 2H), 7.52-7.57 (m, 1H), 7.97-8.05 (m, 4H), 8.74 (s, 1H), 11.17 (s, 1H).

Compound 150; (200 MHz, CDCl₃) δ ppm: 0.94 (d, J=6.4 Hz, 3H), 0.97 (d, J=6.4 Hz, 3H), 1.30 (t, J=7.3 Hz, 3H), 2.00-2.20 (m, 1H), 2.37 (s, 3H), 3.70-3.88 (m, 2H), 4.10 (dd, J=6.9, 9.4 Hz, 1H), 6.71 (d, J=9.4 Hz, 2H), 7.12-7.22 (m, 4H), 7.40 (d, J=8.4 Hz, 1H), 7.65 (dd, J=2.2, 8.4 Hz, 1H), 7.84 (d, J=2.2 Hz, 1H).

Compound 668: (600 MHz, DMSO-d₆) ppm: 1.19-1.25 (m, 6H), 2.22 (s, 3H), 2.41-2.46 (m, 4H), 2.49-2.54 (m, 3H), 3.11-3.17 (m, 4H), 3.83-3.99 (m, 2H), 4.65-4.71 (m, 1H), 6.47-6.51 (m, 1H), 6.77-6.82 (m, 2H), 7.17-7.22 (m, 1H), 7.51-7.55 (m, 1H), 7.77-7.84 (m, 2H), 8.01-8.10 (m, 2H), 8.38-8.51 (m, 2H).

Compound 671: (200 MHz, CDCl₃) δ ppm: 0.89 (t, J=7.5 Hz, 3H), 1.23 (t, J=7.3 Hz, 3H), 1.70-2.06 (m, 2H), 2.42 (s, 3H), 2.66 (bs, 4H), 3.29 (t, J=5.1 Hz, 4H), 3.68-3.92 (m, 2H), 4.38 (dd, J=7.0, 15.4 Hz, 1H), 6.50 (bs, 1H), 6.56 (dd, J=2.0, 8.1 Hz, 1H), 6.72 (dd, J=2.0, 8.4 Hz, 1H), 6.89 (t, J=2.0 Hz, 1H), 7.20 (t, J=8.4 Hz, 1H), 7.46 (t, J=8.1 Hz, 1H), 7.69 (d, J=8.0 Hz, 1H), 7.80 (d, J=8.0 Hz, 1H), 7.94 (d, J=2.0, 9.0 Hz, 1H), 8.28 (d, J=9.0 Hz, 1H), 8.4 (d, J=2.0 Hz, 1H).

Compound 672: (200 MHz, CDCl₃) δ ppm: 1.33 (t, J=7.3 Hz, 3H), 1.49 (d, J=6.8 Hz, 3H), 2.41 (s, 3H), 2.57-2.70 (m, 4H), 3.16-3.33 (m, 6H), 3.91 (q, J=7.3 Hz, 2H), 4.52-4.69 (m, 3H), 5.08 (d, J=9.0 Hz, 1H), 6.73 (dd, J=2.2, 8.6 Hz, 2H), 6.81 (d, J=9.0 Hz, 1H), 6.97 (t, J=2.2 Hz, 1H), 7.23 (t, J=8.1 Hz, 1H), 7.62-7.68 (m, 2H).

Compound 673: (200 MHz, CDCl₃) δ ppm: 1.31 (t, J=7.0 Hz, 3H), 1.33 (s, 6H), 1.49 (d, J=7.0 Hz, 3H), 1.80 (t, J=6.6 Hz, 2H), 2.39 (s, 3H), 2.59 (t, J=5.0 Hz, 4H), 2.79 (t, J=7.0 Hz, 2H), 3.25 (t, J=5.0 Hz, 4H), 3.90 (q, J=7.0 Hz, 2H), 4.48-4.65 (m, 1H), 5.07 (d, J=9.5 Hz, 1H), 6.73 (dd, J=2.4, 8.1 Hz, 2H), 6.82 (d, J=9.2 Hz, 1H), 6.97 (t, J=2.4 Hz, 1H), 7.23 (t, J=8.1 Hz, 1H), 7.51-7.57 (m, 2H).

Compound 674: (200 MHz, CDCl₃) δ ppm: 1.34 (t, J=7.3 Hz, 3H), 1.49 (d, J=6.8 Hz, 3H), 2.21 (quint, J=6.0 Hz, 2H), 2.37 (s, 3H), 2.59 (t, J=4.6 Hz, 4H), 3.25 (t, J=4.6 Hz, 4H), 3.93 (q, J=7.3 Hz, 2H), 4.27 (dd, J=6.0, 11.6 Hz, 4H) 4.51-4.66 (m, 1H), 5.15 (d, J=9.5 Hz, 1H), 6.74 (dd, J=2.2, 8.4 Hz, 1H), 7.07-7.13 (m, 2H), 7.23 (t, J=8.1 Hz, 1H), 7.38 (dd, J=2.4, 8.1 Hz, 1H), 7.43 (d, J=2.0 Hz, 1H).

Compound 675: (200 MHz, CDCl₃) δ ppm: 1.36 (t, J=7.3 Hz, 3H), 1.49 (d, J=6.8 Hz, 3H), 2.39 (s, 3H), 2.59 (t, J=5.0 Hz, 4H), 3.26 (t, J=5.0 Hz, 4H), 3.95 (q, J=7.3 Hz, 2H), 4.50-4.68 (m, 1H), 5.18 (d, J=9.5 Hz, 1H), 6.05 (s, 2H), 6.74 (dd, J=2.4, 8.1 Hz, 2H), 6.86 (d, J=8.4 Hz, 1H), 6.98 (t, J=2.4 Hz, 1H), 7.19-7.27 (m, 2H), 7.42 (dd, J=1.8, 8.1 Hz, 1H).

Compound 676: (200 MHz, CDCl₃) δ ppm: 1.27-1.33 (m, 15H), 1.47 (d, J=6.8 Hz, 3H), 2.43 (s, 3H), 2.61-2.72 (m, 4H), 3.25-3.33 (m, 4H), 3.90 (q, J=7.5 Hz, 2H), 4.57 (dd, J=6.8, 9.2 Hz, 1H), 5.13 (d, J=9.2 Hz, 1H), 6.70-6.79 (m, 2H), 6.99 (t, J=2.2 Hz, 1H), 7.22 (t, J=8.1 Hz, 1H), 7.41 (d, J=8.6 Hz, 1H), 7.57 (dd, J=2.0, 8.1 Hz, 1H), 7.79 (d, J=2.0 Hz, 1H).

Compound 677: (200 MHz, CDCl₃) δ ppm: 1.32 (t, J=7.3 Hz, 3H), 1.49 (d, J=6.8 Hz, 3H), 2.22 (s, 3H), 2.38 (s, 3H), 2.56-2.63 (m, 4H), 3.14-3.30 (m, 6H), 3.84-4.10 (m, 4H), 4.53-4.64 (m, 1H), 5.25 (d, J=9.5 Hz, 1H), 6.71-6.79 (m, 2H), 7.01 (t, J=2.4 Hz, 1H), 7.22 (t, J=8.4 Hz, 1H), 7.57 (s, 1H), 7.69 (dd, J=2.0, 8.4 Hz, 1H), 8.27 (d, J=8.4 Hz, 1H).

Compound 678: (200 MHz, CDCl₃) δ ppm: 1.32 (t, J=7.3 Hz, 3H), 1.46 (d, J=6.8 Hz, 3H), 2.11 (quint, J=7.5 Hz, 2H), 2.36 (s, 3H), 2.58 (t, J=5.0 Hz, 4H), 2.94 (t, J=7.5 Hz, 4H), 3.25 (t, J=5.0 Hz, 4H), 3.92 (q, J=7.3 Hz, 2H), 4.52-4.67 (m, 1H), 5.15 (d, J=10.0 Hz, 1H), 6.73 (dd, J=2.2, 8.1 Hz, 2H), 6.98 (t, J=2.2 Hz, 1H), 7.22 (t, J=7.9 Hz, 1H), 7.31 (d, J=8.1 Hz, 1H), 7.62 (dd, J=2.2, 7.9 Hz, 1H), 7.67 (s, 1H).

Compound 679: (600 MHz, DMSO-d₆) δ ppm; 1.24 (t, J=7.1 Hz, 3H), 1.29 (d, J=6.9 Hz, 3H), 2.22 (s, 3H), 2.40-2.46 (m, 4H), 3.12-3.16 (m, 4H), 3.81-3.97 (m, 2H), 4.64-4.72 (m, 1H), 6.53-6.58 (m, 1H), 6.60-6.65 (m, 1H), 6.77-6.82 (m, 2H), 7.20 (t, J=8.3 Hz, 1H), 7.60 (d, J=8.7 Hz, 1H), 7.94-7.99 (m, 1H), 8.17-8.23 (m, 2H), 8.54-8.61 (m, 1H).

Compound 698: (600 MHz, CDCl₃) δ ppm: 1.33 (t, J=7.1 Hz, 3H), 1.43 (d, J=6.9 Hz, 3H), 2.11 (s, 3H), 3.10-3.20 (m, 4H), 3.53-3.59 (m, 2H), 3.67-3.74 (m, 2H), 3.89-4.00 (m, 2H), 4.67 (q, J=7.1 Hz, 1H), 6.65-6.75 (m, 2H), 6.94-6.97 (m, 1H), 7.21-7.25 (m, 1H), 7.46-7.50 (m, 1H), 7.69-7.73 (m, 1H), 7.80-7.84 (m, 1H), 7.95-7.99 (m, 1H), 8.29-8.34 (m, 1H), 8.45-8.47 (m, 1H).

The following describes exemplary methods of preparing starting materials used to produce the compounds of the present application.

Reference Examples 1-3

Starting from the corresponding amine in place of 1,4-dioxa-8-azaspiro[4,5]decane used in Example 7-(1), the same procedure as used in Example 7-(1) was repeated to give the titled compounds.

Reference Example 1 3-((2R,6S)-2,6-Dimethylmorpholine-4-yl)-phenol

Brown oily substance, yield 71%

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.24 (d, J=6.0 Hz, 6H), 2.36-2.45 (m, 2H), 3.37-3.46 (m, 2H), 3.73-3.83 (m, 2H), 5.01 (s, 1H), 6.28-6.33 (m, 1H), 6.36-6.38 (m, 1H), 6.46-6.51 (m, 1H), 7.10 (t, J=8.0 Hz, 1H)

Reference Example 2 3-[4-(2-Dimethylaminoethyl)-piperazin-1-yl]-phenol

Yellow oily substance, yield 12%

¹H NMR (600 MHz, CDCl₃) δ ppm: 2.29 (s, 6H), 2.48-2.57 (m, 4H), 2.57-2.64 (m, 4H), 3.11-3.16 (m, 4H), 6.24-6.30 (m, 1H), 6.32-6.37 (m, 1H), 6.42-6.49 (m, 1H), 7.04-7.09 (m, 1H)

Reference Example 3 3-[(2-Dimethylaminoethyl)-methyl-amino]-phenol

Brown oily substance, yield 42%

¹H NMR (600 MHz, CDCl₃) δ ppm: 2.27 (s, 6H), 2.44-2.50 (m, 2H), 2.87 (s, 3H), 3.37-3.44 (m, 2H), 6.09-6.16 (m, 2H), 6.19-6.24 (m, 1H), 7.01 (t, J=8.0 Hz, 1H)

Reference Example 4 3-(4-Isopropyl-piperazin-1-yl)-phenol

Acetone (1.95 g) and NaBH(OAc)₃ (7.12 g) were added to a solution of 3-piperazin-1-yl-phenol (2.00 g) in THF (40 ml), and the mixture was stirred at room temperature for 18 hours. Saturated aqueous sodium bicarbonate was added to the reaction solution, and the mixture was extracted with ethyl acetate. The organic layer was dried (MgSO₄) and filtered to give the titled compound (1.48 g, colorless powder).

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.11 (d, J=6.4 Hz, 6H), 2.68-2.72 (m, 4H), 2.71-2.78 (m, 1H), 3.15-3.23 (m, 4H), 6.28-6.32 (m, 1H), 6.36 (t, J=2.3 Hz, 1H), 6.50 (dd, J=8.3, 2.3 Hz, 1H), 7.09 (t, J=8.3 Hz, 1H)

Reference Example 5 3-(1-Isopropylpiperidin-4-yl)-phenol

Starting from 3-piperidin-4-yl-phenol in place of 3-piperazin-1-yl-phenol used in Reference Example 4, the same procedure as used in Reference Example 4 was repeated to give the titled compound (yield 31%, colorless powder).

¹H NMR (600 MHz, CDCl₃) δ ppm: 1.16 (d, J=6.4 Hz, 6H), 1.76-1.86 (m, 2H), 1.91-2.01 (m, 2H), 2.31-2.50 (m, 3H), 2.92-3.02 (m, 1H), 3.08-3.19 (m, 2H), 6.66-6.72 (m, 2H), 6.74-6.79 (m, 1H), 7.11 (t, J=7.8 Hz, 1H)

Reference Example 6 4-Fluoro-3-(4-methyl-piperazin-1-yl)-phenol

4-Benzyloxy-2-chloro-1-fluorobenzene

(1) A suspension of 3-chloro-4-fluorophenol (2.00 g), benzyl chloride (1.88 ml), and potassium carbonate (2.82 g) in dimethylformamide (10 ml) was stirred at room temperature for three hours. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, dried (MgSO₄), filtered, and concentrated, and the resulting residue was purified by silica-gel column chromatography (OH SiO₂, AcOEt/hexane=0-10%) to give the titled compound (2.00 g) as a light yellow oily substance.

¹H NMR (600 MHz, CDCl₃) δ ppm: 5.01 (s, 2H), 6.77-6.86 (m, 1H), 6.96-7.09 (m, 2H), 7.30-7.46 (m, 5H)

1-(5-Benzyloxy-2-fluorophenyl)-4-methyl-piperazine

(2) Under an argon atmosphere at room temperature, the compound (7.5 g) obtained in Reference Example 6-(1) and thereafter a solution of 2,8,9-triisobutyl-2,5,8,9-tetraaza-1-1 phosphino-bicyclo[3,3,3]-undecane (1.1 g) in toluene (320 ml) were added to tris dibenzylidenedipalladium (1.45 g) and t-butoxysodium (4.26 g). Then, a solution of N-methylpiperazine (1.02 g) in toluene (20 ml) was added at room temperature, and the mixture was stirred at 100° C. for 60 hours. The reaction mixture was concentrated, and the resulting residue was purified by silica-gel column chromatography (NH SiO₂, AcOEt/hexane=0-30%) to give the titled compound (2.27 g) as a yellow oily substance.

¹H NMR (600 MHz, CDCl₃) δ ppm: 2.35 (s, 3H), 2.55-2.63 (m, 4H), 3.06-3.15 (m, 4H), 5.00 (s, 2H), 6.46-6.51 (m, 1H), 6.56-6.59 (m, 1H), 6.89-6.95 (m, 1H), 7.29-7.45 (m, 5H)

4-Fluoro-3-(4-methylpiperazin-1-yl)-phenol

(3) A suspension of the compound (2.48 g) obtained in Reference Example 6-(2) and palladium hydroxide (10%, 250 mg) in methanol (30 ml) was stirred under a hydrogen atmosphere at 65° C. for two hours and a half and thereafter at room temperature for overnight. The reaction solution was filtered through celite, and the filtrate was concentrated. The resulting residue was purified by silica-gel column chromatography (NH SiO₂, AcOEt/hexane=0-99%, methanol/chloroform=0-10%). Thereafter, the resulting compound was purified again by silica-gel column chromatography (OH SiO₂, methanol/chloroform=0-10%) to give the titled compound (877 mg) as an ocher solid.

¹H NMR (600 MHz, DMSO-d₆) δ ppm: 2.21 (s, 3H), 2.39-2.48 (m, 4H), 2.89-2.99 (m, 4H), 6.26-6.31 (m, 1H), 6.35-6.39 (m, 1H), 6.84-6.91 (m, 1H), 9.20 (s, 1H)

The following describes an exemplary method of producing an intermediate represented by Formula (II) of the present application.

Starting from the corresponding starting materials, the same procedures as shown in Examples 1-(1) to 1-(7), Examples 2-(1) and 2-(2), Examples 7-(1) and 7-(2), Examples 17-(1) and 17-(2), Example 18-(1), Example 21-(1), Example 22-(1), Example 23-(1), and Examples 26-(1) to 26-(8) were repeated, followed by salt formation as needed to obtain compounds or salts of the compounds which are intermediates useful in producing the compound of Formula (I) of the present application. The resulting intermediates are shown in Table 2 together with the intermediates obtained in the Examples above.

TABLE 2 Compound number Chemical structure ¹H NMR Intermediate  1

(200 MHz, CDCl₃) δ ppm: 1.25 (t, J = 7.3 Hz, 3H), 3.12 (dd, J = 13.3, 8.6 Hz, 1H), 3.38 (dd, J = 13.3, 6.1 Hz, 1H, 3.60-4.30 (m, 3H), 7.10-7.46 (m, 10H) Intermediate  2

(600 MHz, DMSO-d6) δ ppm: 1.29 (t, J = 7.3 Hz, 3H), 1.41 (d, J = 6.9 Hz, 3H), 2.30 (s, 3H), 3.96-4.09 (m, 3H), 7.15-7.30 (m, 4H) Intermediate  3

(600 MHz, DMSO-d6) δ ppm: 1.33 (t, J = 7.1 Hz, 3H), 1.42 (d, J = 6.4 Hz, 3H), 2.23 (s, 3H), 4.00-4.12 (m, 3H), 7.10-7.40 (m, 4H) Intermediate  4

(600 MHz, DMSO-d6) δ ppm: 1.22-1.30 (m, 3H), 1.41-1.48 (m, 3H), 2.33 (s, 3H), 3.83-4.10 (m, 3H), 7.04-7.14 (m, 3H), 7.26-7.37 (m, 1H) Intermediate  5

(600 MHz, CDCl₃) δ ppm: 1.46 (t, J = 7.1 Hz, 3H), 1.57 (d, J = 6.9 Hz, 3H), 4.05-4.25 (m, 3H), 6.81-7.32 (m, 4H) Intermediate  6

(200 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.3 Hz, 3H), 1.59 (d, J = 6.6 Hz, 3H), 3.87-4.26 (m, 3H), 7.14-7.26 (m, 1H), 7.30-7.45 (m, 4H) Intermediate  7

(600 MHz, CDCl₃) δ ppm: 1.35-1.45 (m, 3H), 1.53-1.62 (m, 3H), 3.95-4.20 (m, 3H), 7.27-7.40 (m, 4H) Intermediate  8

(600 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.1 Hz, 3H), 1.60 (d, J = 6.9 Hz, 3H), 3.90-4.25 (m, 3H), 7.15-7.50 (m, 4H) Intermediate  9

(600 MHz, DMSO-d6) δ ppm: 1.14 (t, J = 7.3 Hz, 3H), 2.30 (s, 2H), 3.00 (dd, J = 13.3, 7.3 Hz, 1H), 3.19 (dd, J = 13.3, 6.9 Hz, 1H), 3.77-3.98 (m, 2H), 4.11 (t, J = 7.1 Hz, 1H), 7.13-7.139 (m, 9H) Intermediate 10

(600 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.4 Hz, 3H), 1.57 (d, J = 6.8 Hz, 3H), 3.80 (s, 3H), 3.95-4.20 (m, 3H), 6.82-6.97 (m, 2H), 7.21-7.34 (m, 2H) Intermediate 11

(600 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.3 Hz, 3H), 1.58 (d, J = 6.4 Hz, 3H), 3.95-4.23 (m, 3H), 6.90-7.15 (m, 2H), 7.30-7.44 (m, 2H) Intermediate 12

(600 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.4 Hz, 3H), 1.60 (d, J = 6.8 Hz, 3H), 3.98-4.21 (m, 3H), 7.26-7.65 (m, 3H) Intermediate 13

(600 MHz, CDCl₃) δ ppm: 1.40 (t, J = 7.1 Hz, 3H), 1.58 (d, J = 6.9 Hz, 3H), 2.24 (s, 3H), 2.25 (s, 3H), 3.95-4.23(m, 3H), 7.00-7.19 (m, 3H) Intermediate 14

(200 MHz, CDCl₃) δ ppm: 1.05-2.03 (m, 16 H), 2.32-2.65 (m, 1 H), 3.87-4.29 (m, 3 H), 7.00-7.46 (m, 4 H) Intermediate 15

(200 MHz, CDCl₃) δ ppm: 1.43 (t, J = 7.3 Hz, 3 H), 1.59 (d, J = 7.0 Hz, 3 H), 3.87 (s, 6 H), 3.96-4.27 (m, 3 H), 6.82-6.88 (m, 2 H), 6.97 (d, J = 2.6 Hz, 1 H) Intermediate 16

(600 MHz, CDCl₃) δ ppm: 1.42 (t, J = 7.3 Hz, 3 H), 1.59 (d, J = 6.4 Hz, 3 H), 3.80 (s, 3 H), 3.82 (s, 6 H), 3.99-4.12 (m, 2 H), 4.13-4.19 (m, 1 H), 6.63 (s, 2 H) Intermediate 17

(600 MHz, CDCl₃) δ ppm: 1.39 (t, J = 7.3 Hz, 3 H), 1.57 (d, J = 6.9 Hz, 3 H), 2.12 (s, 3 H), 2.26 (s, 6 H), 3.96-4.07 (m, 2 H), 4.14 (q, J = 6.6 Hz, 1 H), 6.97 (s, 2 H) Intermediate 18

(600 MHz, CDCl₃) δ ppm: 1.38 (t, J = 7.3 Hz, 3 H), 1.57 (d, J = 6.9 Hz, 3 H), 2.30 (s, 6 H), 3.94-4.08 (m, 2 H) 4.15 (q, J = 6.9 Hz, 1 H), 6.81 (s, 1 H), 6.95 (s, 2 H) Intermediate 19

(600 MHz, CDCl₃) δ ppm: 1.43 (t, J = 7.3 Hz, 3 H), 1.63 (d, J = 6.9 Hz, 3 H), 3.81 (s, 6 H), 4.00-4.12 (m, 2 H) 4.20 (q, J = 6.7 Hz, 1 H), 6.33 (s, 1 H), 6.59 (s, 2 H) Intermediate 20

(600 MHz, CDCl₃) δ ppm: 0.95-0.98 (m, 3 H), 1.40 (t, J = 7.3 Hz, 3 H), 1.43-1.52 (m, 2 H), 1.56 (d, J = 6.9 Hz, 3 H), 1.71-1.78 (m, 2H), 3.93 (t, J = 6.4 Hz, 2 H) 3.97-4.08 (m, 2 H), 4.15 (q, J = 6.6 Hz, 1 H), 6.85-6.89 (m, 2 H) 7.23-7.28 (m, 2 H) Intermediate 21

(600 MHz, CDCl₃) δ ppm: 1.42 (t, J = 7.3 Hz, 3H), 1.59 (d, J = 6.9 Hz, 3H), 3.99-4.13 (m, 2H), 4.17 (q, J = 6.9 Hz, 1H), 6.98-7.05 (m, 4H), 7.07-7.13 (m, 1 H), 7.29-7.39 (m, 4H) Intermediate 22

(600 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.1 Hz, 3H), 1.58 (d, J = 6.9 Hz, 3H), 3.99-4.10 (m, 2H), 4.16 (q, J = 6.9 Hz, 1H), 5.05 (s, 2H), 6.94-7.00 (m, 2H), 7.25-7.31 (m, 2H), 7.31-7.35 (m, 1H), 7.36-7.41 (m, 2H), 7.41-7.44 (m, 2H) Intermediate 23

(600 MHz, CDCl₃), δ ppm: 1.23 (t, J = 7.6 Hz, 3 H), 1.40 (t, J = 7.3 Hz, 3 H), 1.58 (d, J = 6.4 Hz, 3 H), 2.64 (q, J = 7.5 Hz, 2 H), 3.98-4.11 (m, 2 H), 4.16 (q, J = 6.9 Hz, 1 H), 7.16-7.31 (m, 4 H) Intermediate 24

(600 MHz, CDCl₃) δ ppm: 0.94 (t, J = 7.3 Hz, 3 H), 1.40 (t, J = 7.3 Hz, 3 H), 1.54-1.67 (m, 5 H), 2.53-2.61 (m, 2 H), 3.94-4.10 (m, 2 H), 4.17 (q, J = 6.4 Hz, 1 H) 7.12-7.31 (m, 4 H) Intermediate 25

(600 MHz, CDCl₃) δ ppm: 1.39 (t, J = 7.3 Hz, 3 H), 1.57 (d, J = 6.9 Hz, 3 H), 2.35 (s, 3 H), 3.96-4.09 (m, 2 H), 4.14 (q, J = 6.6 Hz, 1 H), 7.14 (dd, J = 8.7, 3.7 Hz, 1 H), 7.27 (d, J = 3.2 Hz, 1 H), 7.31 (d, J = 8.7 Hz, 1 H) Intermediate 26

(600 MHz, CDCl₃) δ ppm: 1.40 (t, J = 7.3 Hz, 3 H), 1.56 (d, J = 6.9 Hz, 3 H), 3.99-4.10 (m, 2 H), 4.14 (q, J = 6.7 Hz, 1 H), 6.30-6.33 (m, 2 H), 6.99-7.03 (m, 2 H), 7.34-7.38 (m, 2 H), 7.41-7.44 (m, 2 H) Intermediate 27

(600 MHz, CDCl₃) δ ppm: 1.38 (t, J = 7.1 Hz, 3 H), 1.57 (d, J = 6.9 Hz, 3 H), 2.94 (s, 6 H), 3.95-4.07 (m, 2 H), 4.14 (q, J = 6.9 Hz, 1 H), 6.52 (dd, J = 8.7, 2.8 Hz, 1 H), 6.60 (dd, J = 8.7, 2.3 Hz, 1 H), 6.72 (t, J = 2.3 Hz, 1 H), 7.18 (t, J = 8.3 Hz, 1 H) Intermediate 28

(600 MHz, CDCl₃) δ ppm: 1.43 (t, J = 7.1 Hz, 3H), 1.60 (d, J = 6.9 Hz, 3H), 4.02-4.13 (m, 2H), 4.19 (q, J = 6.9 Hz, 1H), 7.32-7.37 (m, 1H), 7.40-7.48 (m, 4H), 7.55-7.62 (m, 4H) Intermediate 29

(600 MHz, CDCl₃) δ ppm: 1.40 (t, J = 7.3 Hz, 3H), 1.61 (d, J = 6.9 Hz, 3H), 4.00-4.12 (m, 2H), 4.17-4.23 (m, 1H), 7.19-7.23 (m, 1H), 7.37-7.42 (m, 2H) Intermediate 30

(600 MHz, CDCl₃) δ ppm: 1.42 (t, J = 7.1 Hz, 3H), 1.60 (d, J = 6.4 Hz, 3H), 4.01-4.13 (m, 2H), 4.17 (q, J = 6.4 Hz, 1H), 7.13-7.18 (m, 1H), 7.30-7.54 (m, 1H), 7.51-7.54 (m, 1H) Intermediate 31

(600 MHz, CDCl₃) δ ppm: 0.92 (t, J = 7.6 Hz, 3 H), 1.30-1.44 (m, 5 H), 1.54-1.63 (m, 5 H), 2.55-2.64 (m, 2 H), 3.97-4.10 (m, 2 H), 4.17 (q, J = 6.6 Hz, 1 H), 7.15-7.29 (m, 4 H) Intermediate 32

(600 MHz, CDCl₃) δ ppm: 1.42 (t, J = 7.3 Hz, 3 H), 1.60 (d, J = 6.9 Hz, 3 H), 4.00-4.15 (m, 2 H), 4.18 (q, J = 6.9 Hz, 1 H), 7.19-7.28 (m, 2 H), 7.39-7.47 (m, 2 H) Intermediate 33

(600 MHz, CDCl₃) δ ppm: 1.39 (t, J = 7.3 Hz, 3 H), 1.58 (d, J = 6.4 Hz, 3 H), 3.12-3.19 (m, 4 H), 3.79-3.86 (m, 4 H), 3.95-4.09 (m, 2 H), 4.14 (q, J = 6.7 Hz, 1 H), 6.71 (dd, J = 8.0, 2.1 Hz, 1 H), 6.79 (dd, J = 8.3, 2.3 Hz, 1 H) 7.00-7.03 (m, 1 H), 7.21-7.25 (m, 1 H) Intermediate 34

(600 MHz, CDCl₃) δ ppm: 1.39 (t, J = 7.1 Hz, 3 H), 1.56 (d, J = 6.9 Hz, 3 H), 2.33 (s, 6 H), 2.67-2.76 (m, 2 H), 3.95-4.08 (m, 4 H), 4.14 (q, J = 6.6 Hz, 1 H), 6.84-6.93 (m, 2 H), 7.19-7.31 (m, 2 H) Intermediate 35

(600 MHz, CDCl₃) δ ppm: 1.40 (t, J = 7.1 Hz, 3 H), 1.56 (d, J = 6.9 Hz, 3 H), 2.54-2.59 (m, 4 H), 2.78 (t, J = 5.7 Hz, 2 H), 3.71-3.75 (m, 4 H), 3.98-4.06 (m, 2 H), 4.08 (t, J = 5.7 Hz, 2 H), 4.14 (q, J = 6.6 Hz, 1 H), 6.86-6.90 (m, 2 H), 7.24-7.28 (m, 2 H) Intermediate 36

(600 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.3 Hz, 3 H), 1.59 (d, J = 6.9 Hz, 3 H), 2.27 (d, J = 1.8 Hz, 3H), 3.98-4.11 (m, 2 H), 4.17 (q, J = 6.9 Hz, 1 H), 6.95-7.03 (m, 1 H), 7.11-7.16 (m, 1 H), 7.21-7.24 (m, 1 H) Intermediate 37

(200 MHz, CDCl₃) δ ppm: 1.00-1.20 (m, 4H), 1.58 (d, J = 6.6 Hz, 3H), 2.90-3.06 (m, 1H), 3.80 (s, 3H), 4.05-4.32 (m, 1H), 6.38-6.95 (m, 2H), 7.20-7.30 (m, 2H) Intermediate 38

(600 MHz, CDCl₃) δ ppm: 1.23 (d, J = 7.3 Hz, 6 H), 1.39 (t, J = 7.1 Hz, 3 H), 1.57 (d, J = 6.9 Hz, 3 H), 2.86-2.93 (m, 1 H), 3.97-4.09 (m, 2 H), 4.15 (q, J = 6.6 Hz, 1 H), 7.19-7.23 (m, 2 H) 7.24-7.27 (m, 2 H) Intermediate 39

(600 MHz, CDCl₃) δ ppm: 1.25 (d, J = 6.9 Hz, 6 H), 1.41 (t, J = 7.3 Hz, 3 H), 1.59 (d, J = 6.4 Hz, 3 H), 2.85-2.97 (m, 1 H), 3.99-4.10 (m, 2 H), 4.16 (q, J = 6.7 Hz, 1 H), 7.06-7.10 (m, 1 H), 7.13-7.18 (m, 1 H), 7.20-7.24 (m, 1 H), 7.26-7.32 (m, 1 H) Intermediate 40

(600 MHz, CDCl₃) δ ppm: 1.48 (t, J = 7.3 Hz, 3 H), 1.61 (d, J = 6.9 Hz, 3 H), 4.09-4.24 (m, 3 H), 7.43 (t, J = 8.0 Hz, 1 H), 7.51-7.56 (m, 2 H), 7.61 (d, J = 6.9 Hz, 1 H), 7.68 (d, J = 8.3 Hz, 1 H), 7.85-7.90 (m, 1 H), 8.11-8.16 (m, 1 H) Intermediate 41

(600 MHz, CDCl₃) δ ppm: 1.43 (t, J = 7.3 Hz, 3 H), 1.60 (d, J = 6.4 Hz, 3 H), 4.02-4.13 (m, 2 H), 4.18 (q, J = 6.6 Hz, 1 H), 7.41-7.51 (m, 3 H), 7.76-7.92 (m, 4 H) Intermediate 42

(600 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.1 Hz, 3 H), 1.57 (d, J = 6.9 Hz, 3 H), 2.93 (s, 6 H), 3.96-4.09 (m, 2 H), 4.15 (q, J = 6.9 Hz, 1 H), 6.66-6.76 (m, 2 H), 7.17-7.25 (m, 2 H) Intermediate 43

(600 MHz, CDCl₃) δ ppm 1.38-1.61 (m, 6 H), 4.00-4.19 (m, 3 H), 6.69-7.37 (m, 3 H) Intermediate 44

(600 MHz, CDCl₃) δ ppm: 1.40 (t, J = 7.3 Hz, 3H), 1.59 (d, J = 6.9 Hz, 3H), 2.35 (s, 3H), 2.52-2.61 (m, 4H), 3.22-3.27 (m, 4H), 3.97-4.08 (m, 2H), 4.15 (q, J = 6.9 Hz, 1H), 6.71-6.80 (m, 2H), 6.99-7.03 (m, 1H), 7.20-7.25 (m, 1H) Intermediate 45

(600 MHz, CDCl₃) δ ppm: 1.43 (t, J = 7.1 Hz, 3 H), 1.59 (d, J = 6.9 Hz, 3 H), 2.82 (s, 3 H), 4.02-4.14 (m, 2 H), 4.18 (q, J = 6.7 Hz, 1 H), 7.42 (dd, J = 8.7, 2.8 Hz, 1 H), 7.77 (d, J = 8.7 Hz, 1 H), 7.85 (d, J = 2.3 Hz, 1 H) Intermediate 46

(200 MHz, CDCl₃) δ ppm: 1.33-1.47 (m, 3 H), 1.57 (d, J = 7.0 Hz, 3 H), 3.03-3.19 (m, 4 H), 3.78-3.92 (m, 4 H), 3.95-4.25 (m, 3 H), 6.81-7.00 (m, 2 H), 7.18-7.33 (m, 2 H) Intermediate 47

(200 MHz, CDCl₃) δ ppm: 1.34-1.46 (m, 3 H), 1.48-1.82 (m, 9 H), 3.02-3.18 (m, 4 H), 3.89-4.27 (m, 3 H), 6.88-7.00 (m, 2 H), 7.16-7.29 (m, 2 H) Intermediate 48

(600 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.1 Hz, 3 H), 1.57 (d, J = 6.4 Hz, 3 H), 1.96-2.03 (m, 4 H), 3.23-3.30 (m, 4 H), 3.96-4.09 (m, 2 H), 4.16 (q, J = 6.6 Hz, 1 H), 6.47-6.56 (m, 2 H), 7.15-7.22 (m, 2 H) Intermediate 49

(600 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.1 Hz, 3 H), 1.57 (d, J = 6.4 Hz, 3 H), 1.96-2.03 (m, 4 H), 3.23-3.30 (m, 4 H), 3.96-4.09 (m, 2 H), 4.16 (q, J = 6.6 Hz, 1 H), 6.47-6.56 (m, 2 H), 7.15-7.22 (m, 2 H) Intermediate 50

(600 MHz, CDCl₃) δ ppm: 1.43 (t, J = 7.1 Hz, 3 H), 1.59 (d, J = 6.9 Hz, 3 H), 2.56 (s, 3 H), 4.03-4.14 (m, 2 H), 4.17 (q, J = 6.6 Hz, 1 H), 7.19 (d, J = 8.7 Hz, 1 H), 7.81 (dd, J = 8.7, 2.8 Hz, 1 H), 8.52 (d, J = 3.2 Hz, 1 H) Intermediate 51

(600 MHz, CDCl₃) δ ppm: 1.40 (t, J = 7.3 Hz, 3H), 1.59 (d, J = 6.9 Hz, 3H), 2.35 (s, 3H), 2.52-2.61 (m, 4H), 3.22-3.27 (m, 4H), 3.97-4.08 (m, 2H), 4.15 (q, J = 6.9 Hz, 1H), 6.71-6.80 (m, 2H), 6.99-7.03 (m, 1H) , 7.20-7.25 (m, 1H) Intermediate 52

(600 MHz, CDCl₃) δ ppm: 1.39 (t, J = 7.3 Hz, 3 H), 1.63 (d, J = 6.9 Hz, 3 H), 3.96-4.09 (m, 2 H), 4.20 (q, J = 6.9 Hz, 1 H), 7.13-7.17 (m, 1 H), 7.30-7.34 (m, 1 H), 7.77-7.81 (m, 1 H), 8.22-8.25 (m, 1 H) Intermediate 53

(600 MHz, CDCl3) δ ppm 1.46 (t, J = 7.3 Hz, 3 H), 1.62 (d, J = 6.4 Hz, 3 H), 4.06-4.17 (m, 2 H), 4.20 (q, J = 6.6 Hz, 1 H), 7.64-7.68 (m, 1 H), 7.70-7.73 (m, 1 H), 7.85-7.90 (m, 1 H), 8.10-8.13 (m, 1 H), 8.52-8.54 (m, 1 H), 9.19-9.25 (m, 1 H) Intermediate 54

(600 MHz, CDCl₃) δ ppm: 1.57 (d, J = 6.9 Hz, 3H), 2.34 (s, 3H), 3.59 (s, 3H), 4.16-4.22 (m, 1H), 7.15-7.18 (m 2H), 7.21-7.25 (m, 2H) Intermediate 55

(600 MHz, CDCl₃) δ ppm: 0.99 (t, J = 7.3 Hz, 3H), 1.58 (d, J = 6.9 Hz, 3H), 1.77-1.85 (m, 2H), 2.34 (s, 3H), 3.85-3.99 (m, 2H), 4.12 (q, J = 6.9 Hz, 1H), 7.15-7.18 (m, 2H), 7.21-7.24 (m, 2H) Intermediate 56

(600 MHz, CDCl₃) δ ppm: 1.53-1.58 (m, 9H), 2.34 (s, 3H), 4.20 (q, J = 6.9 Hz, 1H), 4.66-4.72 (m, 1H), 7.15-7.19 (m, 2H), 7.21-7.24 (m, 2H) Intermediate 57

(200 MHz, CDCl₃) δ ppm: 1.31 (t, J = 7.3 Hz, 3H), 1.60 (d, J = 6.6 Hz, 3H), 2.28 (s, 3H), 3.60-4.30 (m, 3H), 6.96-7.02 (m, 4H) Intermediate 58

(600 MHz, CDCl₃) δ ppm: 1.40 (t, J = 7.3 Hz, 3H), 1.58 (d, J = 6.4 Hz, 3H), 2.34 (s, 3H), 3.99-4.09 (m, 2H), 4.16 (q, J = 6.4 Hz, 1H), 7.15-7.19 (m, 2H), 7.22-7.25 (m, 2H) Intermediate 59

(600 MHz, CDCl₃) δ ppm: 1.44 (t, J = 7.1 Hz, 3 H), 1.59 (d, J = 6.9 Hz, 3 H), 4.02-4.13 (m, 2 H), 4.17 (q, J = 6.6 Hz, 1 H), 6.44-6.47 (m, 1 H), 7.04-7.08 (m, 1 H), 7.15-7.25 (m, 2 H), 7.50-7.57 (m, 1 H), 8.72 (s, 1 H) Intermediate 60

(600 MHz, CDCl₃) δ ppm: 1.42 (t, J = 7.1 Hz, 3 H), 1.58 (d, J = 6.4 Hz, 3 H), 3.98-4.10 (m, 2 H), 4.15 (q, J = 6.7 Hz, 1 H), 6.30-6.39 (m, 1 H), 6.87-7.00 (m, 2 H), 7.39-7.52 (m, 2 H), 9.55 (s, 1 H) Intermediate 61

(600 MHz, CDCl₃), δ ppm: 1.43 (t, J = 7.3 Hz, 3 H), 1.59 (d, J = 6.9 Hz, 3 H), 2.34 (s, 3 H), 3.99-4.12 (m, 2 H), 4.16 (q, J = 6.9 Hz, 1 H), 6.03-6.13 (m, 1 H), 6.86-7.07 (m, 2 H), 7.28-7.37 (m, 1 H), 8.76 (s, 1 H) Intermediate 62

(600 MHz, CDCl₃) δ ppm: 1.38 (t, J = 7.1 Hz, 3H), 1.61 (d, J = 6.9 Hz, 3H), 2.40 (s, 3H), 3.96-4.07 (m, 2H), 4.23 (q, J = 6.9 Hz, 1H), 6.95-6.97 (m, 1H), 7.13-7.15 (m, 1H), 8.07-8.09 (m, 1H) Intermediate 63

(600 MHz, CDCl₃) δ ppm: 1.36-1.45 (m, 3H), 1.60-1.70(m, 3H), 2.32 (s, 3H), 3.96-4.10 (m, 2H), 4.16-4.27 (m, 1H), 7.22-7.27 (m, 1H), 7.56-7.66 (m, 1H), 8.02-8.10 (m, 1H) Intermediate 64

(600 MHz, CDCl₃) δ ppm: 1.43 (t, J = 7.3 Hz, 3H), 1.59 (d, J = 6.4 Hz, 3H), 2.59-2.63 (m, 2H), 2.92-2.99 (m, 2H), 4.00-4.11 (m, 2H), 4.18 (q, J = 6.4 Hz, 1H), 6.80-6.84 (m, 1H), 7.11-7.16 (m, 1H), 7.21-7.25 (m, 1H), 8.28-8.72 (m, 1H) Intermediate 65

(600 MHz, CDCl₃) δ ppm: 1.35 (t, J = 7.3 Hz, 3 H), 1.54 (d, J = 6.9 Hz, 3 H), 3.76 (s, 3 H), 3.93-4.05 (m, 2 H), 4.11 (q, J = 6.4 Hz, 1 H), 6.69 (dd, J = 8.3, 2.3 Hz, 1 H), 6.87 (dd, J = 8.3, 2.3 Hz, 1 H), 6.92 (t, J = 2.3 Hz, 1 H), 7.18-7.24 (m, 1H) Intermediate 66

(600 MHz, CDCl₃) δ ppm: 1.14 (t, J = 7.1 Hz, 6 H), 1.38 (t, J = 7.3 Hz, 3 H), 1.57 (d, J = 6.9 Hz, 3 H), 3.32 (q, J = 6.9 Hz, 4 H), 3.95-4.07 (m, 2 H), 4.11-4.17 (m, 1 H), 6.46 (dd, J = 8.7, 2.3 Hz, 1 H), 6.50 (dd, J = 8.0, 2.5 Hz, 1 H), 6.67 (t, J = 2.5 Hz, 1 H), 7.14 (t, J = 8.3 Hz, 1 H) Intermediate 67

(600 MHz, CDCl₃) δ ppm: 1.39 (t, J = 7.3 Hz, 3H), 1.62 (d, J = 6.4 Hz, 3H), 2.45 (s, 3H), 3.97-4.09 (m, 2H), 4.19 (q, J = 6.4 Hz, 1H), 6.98-7.01 (m, 1H), 7.13-7.16 (m, 1H), 7.64-7.67 (m, 1H) Intermediate 68

(600 MHz, CDCl₃) δ ppm: 1.45 (t, J = 7.3 Hz, 3H), 1.62 (d, J = 6.9 Hz, 2H), 4.05-4.15 (m, 2H), 4.20 (q, J = 6.9 Hz, 1H), 7.37-7.41 (m, 1H), 7.65-7.68 (m, 1H), 7.84-7.88 (m, 1H), 7.94-7.96 (m, 1H), 8.14-8.19 (m, 1H), 8.90-8.93 (m, 1H) Intermediate 69

(600 MHz, CDCl₃) δ ppm: 1.38 (t, J = 7.1 Hz, 3 H), 1.53-1.60 (m, 5 H), 1.64-1.71 (m, 4 H), 3.95-4.07 (m, 2 H), 4.14 (q, J = 6.7 Hz, 1 H), 6.69-6.74 (m, 2 H), 6.95 (t, J = 2.5 Hz, 1 H), 7.19 (t, J = 8.3 Hz, 1 H) Intermediate 70

(600 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.1 Hz, 3H), 1.58 (d, J = 6.9 Hz, 3H), 2.57-2.61 (m, 2H), 2.89-2.93 (m, 2H), 3.99-4.11 (m, 2H), 4.17 (q, J = 6.9 Hz, 1H), 6.90-6.97 (m, 2H), 7.11-7.15 (m, 1H), 8.66 (s, 1H) Intermediate 71

(600 MHz, CDCl₃) δ ppm: 1.38 (t, J = 7.3 Hz, 3 H), 1.58 (d, J = 6.9 Hz, 3 H), 2.30-2.39 (m, 2 H), 3.85-3.89 (m, 4 H), 3.94-4.06 (m, 2 H), 4.15 (q, J = 6.6 Hz, 1 H), 6.22-6.25 (m, 1 H), 6.43 (t, J = 2.3 Hz, 1 H), 6.59-6.63 (m, 1 H), 7.15 (t, J = 8.0 Hz, 1 H) Intermediate 72

(600 MHz, CDCl₃) δ ppm: 1.24 (d, J = 6.4 Hz, 6 H), 1.39 (t, J = 7.3 Hz, 3 H), 1.58 (d, J = 6.9 Hz, 3 H), 2.39-2.46 (m, 2 H), 3.42-3.46 (m, 2 H), 3.73-3.81 (m, 2 H), 3.97-4.09 (m, 2 H), 4.15 (q, J = 6.9 Hz, 1 H), 6.71 (dd, J = 8.0, 2.1 Hz, 1 H), 6.76 (dd, J = 8.5, 2.1 Hz, 1 H), 6.98 (t, J = 2.3 Hz, 1 H), 7.22 (t, J = 8.3 Hz, 1 H) Intermediate 73

(600 MHz, CDCl₃) δ ppm: 1.42 (t, J = 7.3 Hz, 3H), 1.59 (d, J = 6.9 Hz, 3H), 3.92 (s, 3H), 4.02-4.13 (m, 2H), 4.16 (q, J = 6.9 Hz, 1H), 6.90 (s, 1H) Intermediate 74

(600 MHz, CDCl₃) δ ppm: 1.45 (t, J = 7.3 Hz, 3 H), 1.63 (d, J = 6.4 Hz, 3 H), 4.06-4.17 (m, 2 H), 4.18-4.23 (m, 1 H), 7.39-7.44 (m, 1 H), 7.65-7.71 (m, 1 H), 8.02-8.05 (m, 1 H), 8.11-8.16 (m, 2 H), 8.88-8.91 (m, 1 H) Intermediate 75

(600 MHz,, CDCl₃) δ ppm: 1.38 (t, J = 7.1 Hz, 3 H), 1.57 (d, J = 6.4 Hz, 3 H), 1.94-2.02 (m, 4 H), 3.22-3.29 (m, 4 H), 3.95-4.07 (m, 2 H), 4.10-4.19 (m, 1 H), 6.36 (dd, J = 8.2, 2.3 Hz, 1 H), 6.50-6.56 (m, 2 H), 7.16 (t, J = 8.3 Hz, 1 H) Intermediate 76

(600 MHz, CDCl₃) δ ppm: 1.38 (t, J = 7.3 Hz, 3 H), 1.61 (d, J = 6.9 Hz, 3H), 2.53 (s, 6H), 3.98-4.11 (m, 2H), 4.18 (q, J = 6.9 Hz, 1H), 7.05 (s, 2H) Intermediate 77

(600 MHz, CDCl₃) δ ppm: 1.46 (t, J = 7.1 Hz, 3H), 1.63 (d, J = 6.9 Hz, 3H), 4.07-4.24 (m, 3H), 7.63-7.65 (m, 1H), 8.00-8.03 (m, 1H), 8.11-8.13 (m, 1H) Intermediate 78

(600 MHz, CDCl₃) δ ppm: 1.37 (t, J = 7.1 Hz, 3 H), 1.58 (d, J = 6.9 Hz, 3 H), 3.96-4.05 (m, 2 H), 4.15 (q, J = 6.7 Hz, 1 H), 6.45-6.50 (m, 1 H), 6.62-6.67 (m, 1 H), 6.71-6.75 (m, 1 H), 7.11 (t, J = 8.0 Hz, 1 H) Intermediate 79

(600 MHz,, CDCl₃) δ ppm: 1.38 (t, J = 7.1 Hz, 3 H), 1.58 (d, J = 6.9 Hz, 3 H), 2.27 (s, 6 H), 2.45-2.56 (m, 4 H), 2.58-2.63 (m, 4 H), 3.20-3.24 (m, 4 H), 3.95-4.07 (m, 2 H), 4.11-4.17 (m, 1 H), 6.68-6.78 (m, 2 H), 6.95-6.98 (m, 1 H), 7.21 (t, J = 8.3 Hz, 1 H) Intermediate 80

(600 MHz, CDCl₃), δ ppm: 1.43 (t, J = 7.1 Hz, 3 H), 1.60 (d, J = 6.9 Hz, 3 H), 4.02-4.15 (m, 2 H), 4.15-4.22 (m, 1 H), 7.18-7.20 (m, 1 H), 7.22-7.25 (m, 1 H), 7.28-7.30 (m, 1 H), 7.38-7.41 (m, 1 H), 7.46-7.51 (m, 1 H), 7.54-7.57 (m, 1 H), 7.85-7.89 (m, 1 H) Intermediate 81

(600 MHz,, CDCl₃) δ ppm: 1.38 (t, J = 7.3 Hz, 3 H), 1.57 (d, J = 6.9 Hz, 3 H), 1.77-1.83 (m, 4 H), 3.27-3.36 (m, 4 H), 3.95-4.06 (m, 6 H), 4.14 (q, J = 6.9 Hz, 1 H), 6.70-6.75 (m, 2 H), 6.97 (t, J = 2.3 Hz, 1 H), 7.20 (t, J = 8.3 Hz, 1 H) Intermediate 82

(600 MHz, CDCl3) δ ppm 1.42-1.47 (m, 3 H) 1.62 (dd, J = 6.65, 2.06 Hz, 3 H) 4.05-4.17 (m, 2 H) 4.17-4.22 (m, 1 H) 7.24-7.28 (m, 1 H) 7.48-7.61 (m, 2 H) 7.66 (s, 1 H) 8.52 (s, 2H) Intermediate 83

(600 MHz, CDCl₃) δ ppm: 1.07 (d, J = 6.9 Hz, 6 H), 1.38 (t, J = 7.3 Hz, 3 H), 1.57 (d, J = 6.4 Hz, 3 H), 2.62-2.67 (m, 4 H), 2.67-2.74 (m, 1 H), 3.19-3.24 (m, 4 H), 3.96-4.08 (m, 2 H), 4.14 (q, J = 6.7 Hz, 1 H), 6.71 (dd, J = 8.3, 2.3 Hz, 1 H), 6.75 (dd, J = 8.3, 2.3 Hz, 1 H), 6.97 (t, J = 2.3 Hz, 1 H), 7.21 (t, J = 8.3 Hz, 1 H) Intermediate 84

(600 MHz, CDCl₃) δ ppm: 1.38 (t, J = 7.3 Hz, 3H), 1.61 (d, J = 6.9 Hz, 3H), 2.33 (s, 3H), 2.40 (s, 3H), 3.97-4.09 (m, 2H), 4.18 (q, J = 6.9 Hz, 1H), 6.82-6.83 (m, 1H), 6.97-6.98 (m, 1H) Intermediate 85

(600 MHz, CDCl₃) δ ppm: 1.30-1.76 (m, 6H), 2.56 (s, 3H), 2.68 (s, 3H), 4.08-4.19 (m, 3H) 6.59 (s, 1H), 6.73 (s, 1H) Intermediate 86

(600 MHz, CDCl₃) δ ppm: 1.26 (d, J = 6.9Hz, 6H), 1.40 (t, J = 7.3 Hz, 3H), 1.57 (d, J = 6.9 Hz, 3H), 2.87-2.94 (m, 1H), 3.72 (s, 3H), 3.99-4.11 (m, 2H), 4.14 (q, J = 6.9 Hz, 1H), 6.25 (s, 1H) Intermediate 87

(600 MHz,, CDCl₃) δ ppm: 1.39 (t, J = 7.3 Hz, 3 H), 1.57 (d, J = 6.9 Hz, 3 H), 3.34 (s, 6 H), 3.50-3.57 (m, 8 H), 3.96-4.07 (m, 2 H), 4.15 (q, J = 6.6 Hz, 1 H), 6.51 (dd, J = 8.5, 2.5 Hz, 1 H), 6.56 (dd, J = 7.8, 2.3 Hz, 1 H), 6.69 (t, J = 2.3 Hz, 1 H), 7.15 (t, J = 8.3 Hz, 1 H) Intermediate 88

(600 MHz,, CDCl₃) δ ppm: 1.36-1.41 (m, 3 H), 1.57 (d, J = 6.9 Hz, 3 H), 2.28 (s, 6 H), 2.45-2.50 (m, 2 H), 2.94 (s, 3 H), 3.39-3.48 (m, 2 H), 3.94-4.08 (m, 2 H), 4.14 (q, J = 6.9 Hz, 1 H), 6.50 (dd, J = 8.3, 2.3 Hz, 1 H), 6.58 (dd, J = 8.3, 2.3 Hz, 1 H), 6.67 (t, J = 2.5 Hz, 1 H), 7.16 (t, J = 8.3 Hz, 1 H) Intermediate 89

(600 MHz, CDCl₃) δ ppm: 1.39 (t, J = 7.1 Hz, 3H), 1.59 (d, J = 6.4 Hz, 3H), 2.34 (s, 6H), 2.73 (t, J = 5.7 Hz, 2H), 3.98-4.09 (m, 4H), 4.16 (q, J = 6.4 Hz, 1H), 6.75-6.77 (m, 1H), 6.91-6.93 (m, 1H), 6.98-7.00 (m, 1H), 7.24-7.27 (m, 1H) Intermediate 90

(600 MHz, CDCl₃) δ ppm: 1.25 (d, J = 6.9 Hz, 12H), 1.40 (t, J = 7.1 Hz, 3H), 1.58 (d, J = 6.9 Hz, 3H), 3.76-3.85 (m, 2H), 3.96-4.08 (m, 2H), 4.15 (q, J = 6.9 Hz, 1H), 6.57-6.70 (m, 2H), 6.88-6.93 (m, 1H), 7.10-7.17 (m, 1H) Intermediate 91

(600 MHz,, CDCl₃) δ ppm: 1.06 (d, J = 6.42 Hz, 6 H), 1.39 (t, J = 7.3 Hz, 3 H), 1.58 (d, J = 6.9 Hz, 3 H), 1.68-1.89 (m, 4 H), 2.17-2.25 (m, 2 H), 2.44-2.53 (m, 1 H), 2.70-2.77 (m, 1 H), 2.94-3.03 (m, 2 H) 3.96-4.08 (m, 2 H), 4.15 (q, J = 6.6 Hz, 1 H), 7.03-7.07 (m, 1 H), 7.15-7.22 (m, 2 H), 7.28 (t, J = 8.0 Hz, 1 H) Intermediate 92

(600 MHz, CDCl₃), δ ppm: 1.43 (t, J = 7.1 Hz, 3 H), 1.58-1.62 (m, 12 H), 4.01-4.13 (m, 2 H), 4.18 (q, J = 6.6 Hz, 1 H), 7.42-7.46 (m, 1 H), 7.61-7.65 (m, 1 H), 7.82-7.85 (m, 1 H), 7.87-7.91 (m, 1 H) Intermediate 93

(600 MHz, DMSO-d6), δ ppm: 1.23 (t, J = 7.3 Hz, 3 H), 1.54 (d, J = 6.9 Hz, 3 H), 3.82-4.09 (m, 2 H), 4.60 (q, J = 6.0 Hz, 1 H), 6.61-6.69 (m, 2 H), 6.70-6.77 (m, 1 H), 7.14-7.21 (m, 1 H), 8.28-9.11 (m, 2 H), 9.43-10.55 (m, 1 H) Intermediate 94

(600 MHz, CDCl₃), δ ppm: 1.39 (t, J = 7.3 Hz, 3 H), 1.60 (d, J = 6.4 Hz, 3 H), 3.96-4.09 (m, 2 H), 4.17 (q, J = 6.9 Hz, 1 H), 5.06 (s, 2 H), 6.79-6.84 (m, 1 H), 6.91-6.96 (m, 1 H), 7.04-7.08 (m, 1 H), 7.22-7.46 (m, 6 H) Intermediate 95

(200 MHz, CDCl₃) δ ppm: 1.34 (t, J = 7.3 Hz, 3H), 1.61 (d, J = 6.8 Hz, 3H), 3.80-4.23 (m, 3H), 5.96 (br s, 1H), 6.88-7.05 (m, 2H), 7.08-7.25 (m, 2H) Intermediate 96

(600 MHz, CDCl₃) δ ppm: 1.42-1.66 (m, 9H), 4.06-4.20 (m, 5H), 7.01-7.05 (m, 1H), 7.24-7.26 (m, 1H), 7.62-7.69 (m, 2H) Intermediate 97

(600 MHz, CDCl3) δ ppm: 1.02-1.16 (m, 4 H), 1.59 (d, J = 6.9 Hz, 3 H), 2.35 (s, 3 H), 2.52-2.61 (m, 4 H), 2.92-3.01 (m, 1 H), 3.21-3.25 (m, 4 H), 4.24 (q, J = 6.6 Hz, 1 H), 6.68-6.75 (m, 2 H), 6.94-6.98 (m, 1 H), 7.19-7.25 (m, 1 H) Intermediate 98

(600 MHz, CDCL3) δ ppm: 1.03-1.18 (m, 4 H), 1.59 (d, J = 6.9 Hz, 2 H), 2.98-3.04 (m, 1 H), 4.25 (q, J = 6.6 Hz, 1 H), 7.04-7.10 (m, 2 H), 7.30-7.35 (m, 2 H) Intermediate 99

(600 MHz, CDCl3) δ ppm: 0.98-1.20 (m, 4 H), 1.59 (d, J = 6.9 Hz, 3 H), 2.93-3.05 (m, 1 H), 4.22-4.31 (m, 1 H), 6.33-6.44 (m, 1 H), 6.90-7.05 (m, 2 H), 7.31-7.43 (m, 1 H), 7.46-7.55 (m, 1 H), 9.08-9.32 (m, 1 H) Intermediate 100 

(CDCl₃, 200 MHz) δ 1.02 (t, J = 7.5 Hz,, 3H), 1.39 (t, J = 7.3 Hz, 3H), 1.68 (bs, 2H), 1.91-2.14 (m, 2H), 2.34 (s, 3H), 3.90 (t, J = 6.4 Hz, 1H), 4.03 (q, J = 7.3 Hz, 2H), 7.16 (d, J = 8.1 Hz, 2H), 7.24 (d, J = 8.1 Hz, 2H) Intermediate 101 

(CDCl₃, 200 MHz) δ 0.96 (d, J = 6.8 Hz, 3H), 1.07 (d, J = 6.8 Hz, 3H), 1.39 (t, J = 7.3 Hz, 3H), 1.71 (bs, 2H), 2.06-2.24 (m, 1H), 2.34 (s, 3H), 3.69 (d, J = 7.5 Hz, 1H), 4.01 (q, J = 7.3 Hz, 2H), 7.16 (d, J = 8.6 Hz, 2H), 7.25 (d, J = 8.6 Hz, 2H) Intermediate 102 

(200 MHz, CDCl₃) δ ppm: 1.01 (t, J = 7.3 Hz, 3H), 1.39 (t, J = 7.3 Hz, 3H), 1.70-2.11 (m, 2H), 2.35 (s, 3H), 2.56 (t, J = 5.0 Hz, 4H), 3.24 (t, J = 5.0 Hz, 4H), 3.89 (t, J = 7.3 Hz, 1H), 4.02 (q, J = 7.3 Hz, 2H), 6.74 (dt, J = 2.4, 8.4 Hz, 2H), 7.02 (t, J = 2.4 Hz, 1H), 7.22 (t, J = 8.4 Hz, 1H) Intermediate 103 

(600 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.3 Hz, 3H), 1.59 (d, J = 6.4 Hz, 3H), 2.36 (s, 3H), 2.55-2.65 (m, 4H), 3.11-3.19 (m, 4H), 3.98-4.19 (m, 3H), 6.87-6.92 (m, 1H), 6.96-7.04 (m, 2H) Intermediate 104 

(600 MHz, CDCl₃) δ ppm: 1.42 (t, J = 6.9 Hz, 3H), 1.62 (s, 6H), 4.31 (q, J = 6.9 Hz, 2H), 7.04-7.09 (m, 2H), 7.34-7.40 (m, 2H) Intermediate 105 

(600 MHz, CDCl₃) δ ppm: 1.40 (t, J = 7.1 Hz, 3H), 1.59 (d, J = 6.9 Hz, 3H), 2.98-3.04 (m, 4H), 3.14-3.19 (m, 4H), 3.97-4.09 (m, 2H), 4.13-4.18 (m, 1H), 6.70-6.80 (m, 2H), 6.97-7.03 (m, 1H), 7.21-7.26 (m, 1H) Intermediate 106 

(600 MHz, CDCl₃) δ ppm: 1.35 (t, J = 7.3 Hz, 3H), 1.72 (d, J = 6.4 Hz, 3H), 2.12 (s, 3H), 3.14-3.23 (m, 4H), 3.57-3.64 (m, 2H), 3.71-3.77 (m, 2H), 3.87-4.10 (m, 2H), 4.57-4.66 (m, 1H), 6.70-6.81 (m, 2H), 6.95-6.99 (m, 1H), 7.21-7.26 (m, 1H) Intermediate 107 

(200 MHz, CDCl₃) δ ppm: 0.94-1.08 (m, 2H), 1.22-1.31 (m, 2H), 1.47 (t, J = 7.1 Hz, 3H), 4.18 (q, J = 7.1 Hz, 2H), 6.98-7.15 (m, 2H), 7.29-7.42 (m, 2H) Intermediate 108 

(600 MHz, CDCl₃) δ ppm: 1.43 (t, J = 7.3 Hz, 3H), 3.97-4.11 (m, 2H), 4.47-4.54 (m, 1H), 7.06-7.12 (m, 2H), 7.35-7.40 (m, 2H) Intermediate 109 

(200 MHz, CDCl₃) δ ppm: 1.41 (t, J = 7.5 Hz, 3H), 3.62 (dd, J = 4.8, 11.8 Hz, 1H), 3.88 (dd, J = 4.8, 11.8 Hz, 1H), 4.05 (q, J = 7.5 Hz, 2H), 4.51-4.60 (m, 1H), 7.04-7.13 (m, 2H), 7.23-7.31 (m, 3H), 7.53 (d, J = 8.8 Hz, 1H), 7.70 (dd, J = 8.8, 2.2 Hz, 1H), 7.93 (d, J = 2.2 Hz, 1H)

INDUSTRIAL APPLICABILITY

Since the compounds of the present invention are excellent Edg-1(S1P₁) ligands, they are useful as agents for treating or preventing autoimmune diseases, such as Crohn disease, hypersensitivity colitis, Sjogren's syndrome, multiple sclerosis, and systemic lupus erythematosus, and diseases such as rheumatoid arthritis, asthma, atopic dermatitis, organ transplant rejection, cancer, retinopathy, psoriasis, osteoarthritis, and age-related macular degeneration. 

1. A compound represented by Formula (I)

or a pharmaceutically acceptable salt thereof, wherein A represents: an oxygen atom, a sulfur atom, a group represented by Formula —SO—, a group represented by Formula —SO₂—, a group represented by Formula —CH₂—, or a group represented by Formula —NR⁶—, wherein R⁶ represents a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms; R¹ represents: a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a substituent(s) selected from the group consisting of: a hydroxyl group, a halogen atom, an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a phenyl group, and a phenyl group, optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms, a cycloalkyl group having from 3 to 8 carbon atoms, an alkenyl group having from 2 to 8 carbon atoms, an alkynyl group having from 2 to 8 carbon atoms, or a phenyl group; R^(1A) represents: a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms; R¹ and R^(1A) optionally form, together with a carbon atom to which said R¹ and R^(1A) are attached, a cycloalkyl group having from 3 to 6 carbon atoms; R² represents: a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, an alkenyl group having from 2 to 8 carbon atoms, an alkynyl group having from 2 to 8 carbon atoms, or a cycloalkyl group having from 3 to 6 carbon atoms; R³ represents an optionally substituted aryl group; R⁴ represents: a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a carboxyl group; R⁵ represents: (i) an alkyl group having from 1 to 10 carbon atoms, (ii) an alkyl group having from 1 to 10 carbon atoms and substituted with 1 to 2 substituents selected from the group consisting of: a cycloalkyl group having from 3 to 8 carbon atoms, a pyridyl group, and a phenyl group, a phenoxy group, and a naphthyl group, each optionally substituted with 1 to 2 substituents selected from the group consisting of a halogen atom and an alkoxy group having from 1 to 6 carbon atoms, (iii) a cycloalkyl group having from 3 to 8 carbon atoms, (iv) an alkenyl group having from 2 to 8 carbon atoms, (v) an alkenyl group having from 2 to 8 carbon atoms and substituted with a phenyl group, (vi) an alkynyl group having from 2 to 8 carbon atoms, (vii) an alkynyl group having from 2 to 8 carbon atoms and substituted with a phenyl group, or (viii) an optionally substituted aryl group.
 2. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein, in Formula (I): R¹ represents: a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, an alkyl group having from 1 to 6 carbon atoms and substituted with a phenyl group, a cycloalkyl group having from 3 to 8 carbon atoms, an alkenyl group having from 2 to 8 carbon atoms, an alkynyl group having from 2 to 8 carbon atoms, or a phenyl group; R^(1A) represents a hydrogen atom; R² represents: an alkyl group having from 1 to 6 carbon atoms, an alkenyl group having from 2 to 8 carbon atoms, an alkynyl group having from 2 to 8 carbon atoms, or a cycloalkyl group having from 3 to 6 carbon atoms; R⁴ represents: a hydrogen atom, or an alkyl group having from 1 to 6 carbon atoms; R⁵ represents: (i) an alkyl group having from 1 to 10 carbon atoms, (ii) an alkyl group having from 1 to 10 carbon atoms and substituted with 1 to 2 substituents selected from the group consisting of: a cycloalkyl group having from 3 to 8 carbon atoms, a phenyl group, a naphthyl group, a pyridyl group, and a phenyl group substituted with 1 to 2 substituents selected from the group consisting of a halogen atom and an alkoxy group having from 1 to 6 carbon atoms, (iii) a cycloalkyl group having from 3 to 8 carbon atoms, (iv) an alkenyl group having from 2 to 8 carbon atoms, (v) an alkenyl group having from 2 to 8 carbon atoms and substituted with a phenyl group, (vi) an alkynyl group having from 2 to 8 carbon atoms, (vii) an alkynyl group having from 2 to 8 carbon atoms and substituted with a phenyl group, or (viii) an optionally substituted aryl group.
 3. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein A is an oxygen atom or a group represented by Formula —NR⁶—.
 4. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein A is an oxygen atom.
 5. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein A is a group represented by Formula —NH—.
 6. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein: R¹ represents an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a substituent(s) selected from the group consisting of: a hydroxyl group, a halogen atom, an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a phenyl group; and a phenyl group, optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms; R^(1A) represents: a hydrogen atom; or an alkyl group having from 1 to 6 carbon atoms; and R¹ and R^(1A) optionally form, together with a carbon atom to which said R¹ and R^(1A) are attached, a cycloalkyl group having from 3 to 6 carbon atoms.
 7. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein: R¹ is: an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a halogen atom(s), or a benzyl group optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms; and R^(1A) is a hydrogen atom.
 8. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R¹ is a methyl group or an ethyl group, and R^(1A) is a hydrogen atom.
 9. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R⁴ is a hydrogen atom.
 10. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R² is an alkyl group having from 1 to 6 carbon atoms, or a cycloalkyl group having from 3 to 6 carbon atoms.
 11. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R² is an ethyl group or a cyclopropyl group.
 12. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R⁵ is: (i) an alkyl group having from 1 to 10 carbon atoms, (ii) an alkyl group having from 1 to 10 carbon atoms and substituted with 1 to 2 substituents selected from the group consisting of: a cycloalkyl group having from 3 to 8 carbon atoms, a pyridyl group, and a phenyl group, a phenoxy group, and a naphthyl group, each optionally substituted with 1 to 2 substituents selected from the group consisting of a halogen atom and an alkoxy group having from 1 to 6 carbon atoms; (iii) an alkenyl group having from 2 to 8 carbon atoms and optionally substituted with a phenyl group, or (iv) a phenyl group, a naphthyl group, a thienyl group, a pyrrolyl group, a pyrazolyl group, a pyridyl group, a furanyl group, a benzothienyl group, an isoquinolinyl, an isoxazolyl group, a thiazolyl group, a benzothiadiazolyl group, a benzoxadiazolyl group, a dihydrobenzodioxepinyl group, a dihydrobenzodioxynyl group, a benzodioxolyl group, a dihydrobenzofaranyl group, an indanyl group, an uracil group, a coumaryl group, a chromanyl group, a dihydroindolyl group, a tetrahydronaphthyl group, or a tetrahydroisoquinolinyl group, each optionally substituted with 1 to 5 substituents selected from the group consisting of: an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a fluorine atom(s), an alkenyl group having from 2 to 8 carbon atoms, a halogen atom, an alkoxy group having from 1 to 6 carbon atoms and optionally substituted with a fluorine atom(s), a pyrazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, and a pyrimidinyl group, each optionally substituted with a substituent(s) selected from Group X consisting of a methyl group, a trifluoromethyl group, a halogen atom, and a methylsulfanyl group, an alkylthio group having from 1 to 6 carbon atoms, an alkylsulfonyl group having from 1 to 6 carbon atoms, a benzenesulfonyl group, a morpholinosulfonyl group, a morpholinocarbonylamino group, an aminosulfonyl group, an alkoxycarbonyl group having from 2 to 10 carbon atoms, a morpholino group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms a phenyl group optionally substituted with an alkoxy group(s) having from 1 to 6 carbon atoms, a phenoxy group, a pyridinecarbonyl group, a pyridineoxy group, a cyano group, an alkanoyl group having from 2 to 7 carbon atoms and optionally substituted with a fluorine atom(s), and an alkanoylamino group having from 2 to 7 carbon atoms.
 13. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R⁵ is: an alkyl group having from 1 to 10 carbon atoms and substituted with a cycloalkyl group having from 3 to 8 carbon atoms, an alkyl group having from 1 to 10 carbon atoms and substituted with a naphthyl group, an alkenyl group having from 2 to 8 carbon atoms and substituted with a phenyl group, a phenyl group or a naphthyl group, each optionally substituted with 1 to 5 substituents selected from the group consisting of: an alkyl group having from 1 to 6 carbon atoms; a halogen atom, an alkoxy group having from 1 to 6 carbon atoms; a trifluoromethoxy group, a difluoromethoxy group, a trifluoromethyl group, an alkenyl group having from 1 to 6 carbon atoms, an alkylsulfonyl group having from 1 to 6 carbon atoms, an alkanoyl group having from 2 to 7 carbon atoms, an alkoxycarbonyl group having from 2 to 7 carbon atoms, and a cyano group, a pyrrolyl group optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms and a methoxycarbonyl group; a furanyl group optionally selected from a substituent(s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms, a trifluoromethyl group, and a halogen atom; a thienyl group optionally substituted with a substituent (s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms, a trifluoromethyl group, a thiadiazolyl group, an oxazolyl group, and a halogen atom; or a benzothienyl group, a dihydrobenzodioxepinyl group, a benzodioxolyl group, a dihydrobenzodioxynyl group, a dihydrobenzofuranyl group, a tetrahydronaphthyl group, an indanyl group, a thiadiazolyl group, a benzoxadiazolyl group, or a benzothiadiazolyl group, each optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms and a halogen atom.
 14. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R⁵ is: an alkyl group having from 1 to 6 carbon atoms and substituted with a naphthyl group, an alkenyl group having from 2 to 6 carbon atoms and substituted with a phenyl group; an unsubstituted phenyl group, a phenyl group substituted with 1 to 5 substituents selected from the group consisting of a methyl group, a methoxy group, and a halogen atom, a phenyl group substituted with 1 to 3 substituents selected from the group consisting of: an alkyl group having from 1 to 6 carbon atoms, a halogen atom, a methoxy group, a trifluoromethoxy group, a difluoromethoxy group, a trifluoromethyl group, an alkenyl group having from 1 to 6 carbon atoms, a methylsulfonyl group, an acetyl group, a methoxycarbonyl group, and a cyano group, said phenyl group substituted at either 3 or 4 position or both; a naphthyl group optionally substituted with a substituent(s) selected from the group consisting of: a halogen atom, an alkyl group having from 1 to 6 carbon atoms, a cyano group, and an alkylsulfonyl group having from 1 to 6 carbon atoms, or a benzothienyl group, a benzoxadiazolyl group, a benzodioxolyl group, a dihydrobenzodioxynyl group, a dihydrobenzofuranyl group, an indanyl group, or a benzothiadiazolyl group, each optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms and a halogen atom.
 15. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R⁵ is: a phenyl group substituted at 3 and 4 positions each with a halogen atom, or a naphthyl group optionally substituted with a substituent(s) selected from the group consisting of a halogen atom, an alkyl group having from 1 to 6 carbon atoms, and a cyano group.
 16. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R³ is a phenyl group, a naphthyl group, a pyrazolyl group, a pyridyl group, an indolyl group, a benzothiazolyl group, a benzothiadiazolyl group, a pyrazolopyrimidinyl group, a quinolinyl group, an isoquinolinyl group, a benzothienyl group, or a dihydroquinolinonyl group, each optionally substituted with 1 to 3 substituents selected from the group consisting of the following substituents: an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a fluorine atom(s), a cycloalkyl group having from 3 to 8 carbon atoms, a halogen atom, an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a substituent(s) selected from the group consisting of a fluorine atom, a phenyl group, an amino group substituted with two alkyl groups each having from 1 to 4 carbon atoms, and a morpholino group; a phenoxy group, a phenyl group, a carboxyl group, an alkoxycarbonyl group having from 2 to 10 carbon atoms, a hydroxyl group, a monocylic saturated hydrocarbon group having from 2 to 7 carbon atoms and having a nitrogen atom(s) as a ring atom(s), said saturated hydrocarbon group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms, a nitrogen-containing monocylic unsaturated hydrocarbon group, a morpholinyl group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms, a piperazino group optionally substituted with a substituent(s) selected from the group consisting of: an alkyl group having from 1 to 6 carbon atoms, said alkyl group optionally substituted with an amino group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, a morpholino group, a hydroxyl group, or an alkoxy group having from 1 to 6 carbon atoms, a formyl group, an alkanoyl group having from 2 to 7 carbon atoms, a carbamoyl group optionally substituted with one or two alkyl groups each having from 1 to 4 carbon atoms, an aminosulfonyl group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, and an alkylsulfonyl group having from 1 to 6 carbon atoms, and Formula —NR⁷R⁸, wherein: R⁷ and R⁸ each represent: a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, said alkyl group optionally substituted with an amino group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, a hydroxyl group, or an alkoxy group having from 1 to 6 carbon atoms, an alkanoyl group having from 1 to 6 carbon atoms, a carbamoyl group optionally substituted with one or two alkyl groups each having from 1 to 4 carbon atoms, a morpholinocarbonyl group, an aminosulfonyl group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, or an alkylsulfonyl group having from 1 to 6 carbon atoms, or R⁷ and R⁸ optionally form, together with the nitrogen atom to which said R⁷ and R⁸ are attached, a 3- to 8-membered saturated hydrocarbon ring, said ring optionally substituted with a substituent(s) selected from the group consisting of a dimethylenedioxy group, an oxo group, and a hydroxyl group.
 17. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R³ is: a 2-naphthyl group, optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms, a 3-pyrazolyl group, optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms, a trifluoromethyl group, and a halogen atom, or a 5-benzothiazolyl group, a 5-benzothiadiazolyl group, a 7-dihydroquinolinonyl group, a 7-isoquinolinyl group, a 7-quinolinyl group, a 3-pyridyl group, or an indolyl group, each optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms, an unsubstituted phenyl group, or a substituted phenyl group (A), (B), or (C) below: (A) a phenyl group substituted at 4 position with a substituent selected from the group consisting of: an alkyl group having from 1 to 6 carbon atoms, a cycloalkyl group having from 3 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a substituent(s) selected from the group consisting of an amino group substituted with two alkyl groups each having from 1 to 4 carbon atoms, a morpholino group, and a phenyl group, a halogen atom, a trifluoromethoxy group, a phenoxy group, a phenyl group, a 1-pyrrolyl group, and —NR^(A)R^(B), wherein each of R^(A) and R^(B) is an alkyl group having from 1 to 6 carbon atoms, or R^(A) and R^(B) optionally form, together with the nitrogen atom to which said R^(A) and R^(B) are attached, a 3- to 5-membered saturated hydrocarbon ring, wherein said phenyl group substituted at 4 position is further optionally substituted at 3 position with a substituent selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms, a halogen atom, and an alkoxy group having from 1 to 6 carbon atoms; (B) a phenyl group substituted at 3 position with a substituent selected from the group consisting of: a hydroxyl group, an alkyl group having from 1 to 6 carbon atoms, and an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a substituent(s) selected from the group consisting of an amino group substituted with two alkyl groups each having from 1 to 4 carbon atoms, a morpholino group, and a phenyl group, wherein said phenyl group substituted at 3 position is further optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, or is further optionally substituted at 4 position with a halogen atom; and (C) a phenyl group substituted at 3 position with a substituent selected from the group consisting of nitrogen-containing groups (i)-(v) below, said phenyl group further optionally substituted at 4 position with a halogen atom: (i) a monocylic saturated hydrocarbon group having from 2 to 7 carbon atoms and having a nitrogen atom(s) as a ring atom(s), said saturated hydrocarbon group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms, (ii) a nitrogen-containing monocylic unsaturated hydrocarbon group, (iii) a morpholinyl group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms, (iv) a piperazino group, optionally substituted with an alkanoyl group having from 2 to 7 carbon atoms or an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a substituent(s) selected from the group consisting of: an amino group substituted with two alkyl groups each having from 1 to 4 carbon atoms, and a morpholino group, and (v) Formula —NR⁷R⁸, wherein: R⁷ and R⁸ each represent: a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, said alkyl group optionally substituted with an amino group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, a morpholino group, a hydroxyl group, or an alkoxy group having from 1 to 6 carbon atoms, an alkanoyl group having from 1 to 6 carbon atoms, a carbamoyl group optionally substituted with one or two alkyl groups each having from 1 to 4 carbon atoms, a morpholinocarbonyl group, an aminosulfonyl group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, or an alkylsulfonyl group having from 1 to 6 carbon atoms, or R⁷ and R⁸ optionally form, together with the nitrogen atom to which said R⁷ and R⁸ are attached, a 3- to 8-membered saturated hydrocarbon ring, said ring optionally substituted with a substituent(s) selected from the group consisting of a dimethylenedioxy group, an oxo group, and a hydroxyl group.
 18. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R³ is a phenyl group substituted at 3 position with a substituent selected from the group consisting of nitrogen-containing groups (i)-(v) below, said phenyl group further optionally substituted at 4 position with a halogen atom: (i) a monocylic saturated hydrocarbon group having from 2 to 7 carbon atoms and having a nitrogen atom(s) as a ring atom(s), said saturated hydrocarbon group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms, (ii) a nitrogen-containing monocylic unsaturated hydrocarbon group, (iii) a morpholinyl group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms, (iv) a piperazino group, optionally substituted with an alkanoyl group having from 2 to 7 carbon atoms or an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a substituent(s) selected from the group consisting of: an amino group substituted with two alkyl groups each having from 1 to 4 carbon atoms, and a morpholino group, and (v) Formula —NR⁷R⁸, wherein: R⁷ and R⁸ each represent: a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, said alkyl group optionally substituted with an amino group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, a morpholino group, a hydroxyl group, or an alkoxy group having from 1 to 6 carbon atoms, an alkanoyl group having from 1 to 6 carbon atoms, a carbamoyl group optionally substituted with one or two alkyl groups each having from 1 to 4 carbon atoms, a morpholinocarbonyl group, an aminosulfonyl group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, or an alkylsulfonyl group having from 1 to 6 carbon atoms, or R⁷ and R⁸ optionally form, together with the nitrogen atom to which said R⁷ and R⁸ are attached, a 3- to 8-membered saturated hydrocarbon ring, said ring optionally substituted with a substituent(s) selected from the group consisting of a dimethylenedioxy group, an oxo group, and a hydroxyl group.
 19. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R³ is a phenyl group substituted at 4 position with a fluorine atom or a chlorine atom.
 20. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R³ is a 6-indolyl group.
 21. A pharmaceutical preparation, comprising the compound of any one of claims 1-20 or a pharmaceutically acceptable salt thereof.
 22. The pharmaceutical preparation of claim 21, which is for treatment of an autoimmune disease, such as Crohn disease, hypersensitivity colitis, Sjogren's syndrome, multiple sclerosis, and systemic lupus erythematosus, rheumatoid arthritis, asthma, atopic dermatitis, organ transplant rejection, cancer, retinopathy, psoriasis, osteoarthritis, or age-related macular degeneration.
 23. A compound represented by Formula (II)

or a salt thereof, wherein R¹, R^(1A), R², and R³ are as defined in claim 1, and A′ represents an oxygen atom or NH.
 24. The compound of claim 23, or a salt thereof, wherein, in Formula (II): A′ represents an oxygen atom; R′ represents: a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, an alkyl group having from 1 to 6 carbon atoms and substituted with a phenyl group, a cycloalkyl group having from 3 to 8 carbon atoms, an alkenyl group having from 2 to 8 carbon atoms, an alkynyl group having from 2 to 8 carbon atoms, or a phenyl group; R^(1A) represents a hydrogen atom; and R² represents: an alkyl group having from 1 to 6 carbon atoms, an alkenyl group having from 2 to 8 carbon atoms, an alkynyl group having from 2 to 8 carbon atoms, or a cycloalkyl group having from 3 to 6 carbon atoms.
 25. The compound of claim 23, or a salt thereof, wherein, in Formula (II): A′ represents NH; R¹ represents: a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, an alkyl group having from 1 to 6 carbon atoms and substituted with a phenyl group, a cycloalkyl group having from 3 to 8 carbon atoms, an alkenyl group having from 2 to 8 carbon atoms, an alkynyl group having from 2 to 8 carbon atoms, or a phenyl group; R^(1A) represents a hydrogen atom; and R² represents: an alkyl group having from 1 to 6 carbon atoms, an alkenyl group having from 2 to 8 carbon atoms, an alkynyl group having from 2 to 8 carbon atoms, or a cycloalkyl group having from 3 to 6 carbon atoms.
 26. The compound of claim 23, or a salt thereof, wherein: R¹ represents an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a substituent(s) selected from the group consisting of: a hydroxyl group, a halogen atom, an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a phenyl group, and a phenyl group, optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms; R^(1A) represents a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms; and R¹ and R^(1A) optionally form, together with a carbon atom to which said R¹ and R^(1A) are attached, a cycloalkyl group having from 3 to 6 carbon atoms.
 27. The compound of claim 23, or a salt thereof, wherein: R¹ is an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a halogen atom(s), or a benzyl group optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms; and R^(1A) is a hydrogen atom.
 28. The compound of claim 23, or a salt thereof, wherein R¹ is a methyl group or an ethyl group, and R^(1A) is a hydrogen atom.
 29. The compound of claim 23, or a salt thereof, wherein R² is an alkyl group having from 1 to 6 carbon atoms, or a cycloalkyl group having from 3 to 8 carbon atoms.
 30. The compound of claim 23, or a salt thereof, wherein R² is an ethyl group or a cyclopropyl group.
 31. The compound of claim 23, or a salt thereof, wherein: R³ is a phenyl group, a naphthyl group, a pyrazolyl group, a pyridyl group, an indolyl group, a benzothiazolyl group, a benzothiadiazolyl group, a pyrazolopyrimidinyl group, a quinolinyl group, an isoquinolinyl group, a benzothienyl group, or a dihydroquinolinonyl group, each optionally substituted with 1 to 3 substituents selected from the group consisting of the following substituents: an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a fluorine atom(s), a cycloalkyl group having from 3 to 8 carbon atoms, a halogen atom, an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a substituent(s) selected from the group consisting of a fluorine atom, a phenyl group, an amino group substituted with two alkyl groups each having from 1 to 4 carbon atoms, and a morpholino group, a phenoxy group, a phenyl group, a carboxyl group, an alkoxycarbonyl group having from 2 to 10 carbon atoms, a hydroxyl group, a monocylic saturated hydrocarbon group having from 2 to 7 carbon atoms and having a nitrogen atom(s) as a ring atom(s), said saturated hydrocarbon group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms; a nitrogen-containing monocylic unsaturated hydrocarbon group, a morpholinyl group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms, a piperazino group optionally substituted with a substituent(s) selected from the group consisting of: an alkyl group having from 1 to 6 carbon atoms, said alkyl group optionally substituted with an amino group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, a morpholino group, a hydroxyl group, or an alkoxy group having from 1 to 6 carbon atoms, a formyl group, an alkanoyl group having from 2 to 7 carbon atoms, a carbamoyl group optionally substituted with one or two alkyl groups each having from 1 to 4 carbon atoms, an aminosulfonyl group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, and an alkylsulfonyl group having from 1 to 6 carbon atoms; and Formula —NR⁷R⁸, wherein: R⁷ and R⁸ each represent: a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, said alkyl group optionally substituted with an amino group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, a hydroxyl group, or an alkoxy group having from 1 to 6 carbon atoms, an alkanoyl group having from 1 to 6 carbon atoms, a carbamoyl group optionally substituted with one or two alkyl groups each having from 1 to 4 carbon atoms, a morpholinocarbonyl group, an aminosulfonyl group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, or an alkylsulfonyl group having from 1 to 6 carbon atoms, or R⁷ and R⁸ optionally form, together with the nitrogen atom to which said R⁷ and R⁸ are attached, a 3- to 8-membered saturated hydrocarbon ring, said ring optionally substituted with a substituent(s) selected from the group consisting of a dimethylenedioxy group, an oxo group, and a hydroxyl group.
 32. The compound of claim 23, or a salt thereof, wherein R³ is; a 2-naphthyl group, optionally substituted with a substituent(s) selected from the group consisting of a halogen atom and an alkyl group having from 1 to 6 carbon atoms; a 3-pyrazolyl group, optionally substituted with a substituent(s) selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms, a trifluoromethyl group, and a halogen atom; a 5-benzothiazolyl group, a 5-benzothiadiazolyl group, a 7-dihydroquinolinonyl group, a 7-isoquinolinyl group, a 7-quinolinyl group, a 3-pyridyl group, or an indolyl group, each optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms; an unsubstituted phenyl group; or a substituted phenyl group (A), (B), or (C) below: (A) a phenyl group substituted at 4 position with a substituent selected from the group consisting of: an alkyl group having from 1 to 6 carbon atoms, a cycloalkyl group having from 3 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a substituent(s) selected from the group consisting of an amino group substituted with two alkyl groups each having from 1 to 4 carbon atoms, a morpholino group, and a phenyl group, a halogen atom, a trifluoromethoxy group, a phenoxy group, a phenyl group, a 1-pyrrolyl group, and —NR^(A)R^(B), wherein each of R^(A) and R^(B) is an alkyl group having from 1 to 6 carbon atoms, or R^(A) and R^(B) optionally form, together with the nitrogen atom to which said R^(A) and R^(B) are attached, a 3- to 5-membered saturated hydrocarbon ring, wherein said phenyl group substituted at 4 position is further optionally substituted at 3 position with a substituent selected from the group consisting of an alkyl group having from 1 to 6 carbon atoms, a halogen atom, and an alkoxy group having from 1 to 6 carbon atoms; (B) a phenyl group substituted at 3 position with a substituent selected from the group consisting of: a hydroxyl group, an alkyl group having from 1 to 6 carbon atoms, and an alkoxy group having from 1 to 6 carbon atoms, said alkoxy group optionally substituted with a substituent(s) selected from the group consisting of an amino group substituted with two alkyl groups each having from 1 to 4 carbon atoms, a morpholino group, and a phenyl group, wherein said phenyl group substituted at 3 position is further optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, or is further optionally substituted at 4 position with a halogen atom; and (C) a phenyl group substituted at 3 position with a substituent selected from the group consisting of nitrogen-containing groups (i)-(v) below, said phenyl group further optionally substituted at 4 position with a halogen atom: (i) a monocylic saturated hydrocarbon group having from 2 to 7 carbon atoms and having a nitrogen atom(s) as a ring atom(s), said saturated hydrocarbon group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms, (ii) a nitrogen-containing monocylic unsaturated hydrocarbon group, (iii) a morpholinyl group optionally substituted with an alkyl group(s) having from 1 to 6 carbon atoms, (iv) a piperazino group, optionally substituted with an alkanoyl group having from 2 to 7 carbon atoms or an alkyl group having from 1 to 6 carbon atoms and optionally substituted with a substituent(s) selected from the group consisting of: an amino group substituted with two alkyl groups each having from 1 to 4 carbon atoms; and a morpholino group, and (v) Formula —NR⁷R⁸, wherein: R⁷ and R⁸ each represent: a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, said alkyl group optionally substituted with an amino group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, a morpholino group, a hydroxyl group, or an alkoxy group having from 1 to 6 carbon atoms; an alkanoyl group having from 1 to 6 carbon atoms, a carbamoyl group optionally substituted with one or two alkyl groups each having from 1 to 4 carbon atoms, a morpholinocarbonyl group, an aminosulfonyl group optionally substituted with one or two alkyl groups each having from 1 to 6 carbon atoms, or an alkylsulfonyl group having from 1 to 6 carbon atoms, or R⁷ and R⁸ optionally form, together with the nitrogen atom to which said R⁷ and R⁸ are attached, a 3- to 8-membered saturated hydrocarbon ring, said ring optionally substituted with a substituent(s) selected from the group consisting of a dimethylenedioxy group, an oxo group, and a hydroxyl group. 